How Long to Cook 1.5 kg Tomahawk Steak for Perfection

Table of Contents

1. Introduction
2. Understanding the 1.5 kg Tomahawk Steak
3. Preparation: The Foundation of Success
4. How Long to Cook 1.5 kg Tomahawk Steak: The Reverse Sear Method
5. Alternative Method: Traditional Grilling
6. Determining Doneness: The Temperature Guide
7. The Critical Role of Resting
8. Carving and Serving the Masterpiece
9. Gourmet Accompaniments and Pairings
10. Storage and Handling Best Practices
11. Conclusion
12. FAQ

Introduction

Imagine the gasps of delight as you carry a massive, 1.5 kg cut of premium beef to the table, its long, Frenched bone serving as a dramatic handle for a steak that looks like it belongs in a gourmet steakhouse. The tomahawk steak is more than just a meal; it is a statement piece, a culinary event that bridges the gap between a traditional roast and a thick-cut steak. However, when you are dealing with a piece of meat this substantial, the margin for error can feel intimidating. How do you ensure that a steak this thick is edge-to-edge pink without ending up with a charred exterior and a cold, raw center? Understanding exactly how long to cook 1.5 kg tomahawk steak is the difference between a tough, disappointing dinner and a legendary dining experience.

The tomahawk is essentially a ribeye steak with at least five inches of rib bone left intact. The bone is "Frenched," a culinary technique where the meat and fat are stripped away to reveal a clean white bone, mimicking the handle of a prehistoric axe. Because of its 1.5 kg weight, this steak typically measures between two and three inches in thickness, necessitating a different approach than your standard supermarket sirloin. In this guide, we will explore the science of heat transfer, the nuances of the reverse sear method, and the specific timing required to master this heavyweight cut.

Whether you are preparing for a milestone celebration or simply want to elevate your weekend grilling game, the goal is to provide you with the confidence to handle premium products from our Beef Collection. By the end of this article, you will have a comprehensive understanding of preparation, internal temperature targets, and the various cooking methods that ensure your tomahawk is juicy, tender, and perfectly seared. We will cover the importance of temperature over time, the role of resting, and how to pair this masterpiece with the right sides to create a restaurant-quality meal at home through our Home Delivery service.

Understanding the 1.5 kg Tomahawk Steak

Before we dive into the clock and the thermometer, it is vital to understand what makes a 1.5 kg tomahawk unique. This weight category puts the steak into "sharing" territory, often enough to feed two to three people comfortably. Because the bone is left attached, it acts as an insulator during the cooking process, potentially slowing the heat transfer to the meat immediately surrounding it.

The tomahawk is a ribeye at heart, meaning it is characterized by high intramuscular fat, also known as marbling. This fat is where the flavor lives. As the steak cooks, this fat renders, basting the meat from the inside out. When you select a cut from our Shop, you are looking for that intricate web of white fat against deep red muscle. A 1.5 kg cut provides enough thermal mass that it can withstand high heat better than thinner steaks, but its thickness means that the traditional "sear then serve" method will almost always result in an uneven cook.

For those who enjoy the flavor profile of a ribeye but perhaps want something slightly smaller for a more intimate setting, a Boneless Ribeye (Prime, 16 oz) or a Bone-In Ribeye (22 oz) are excellent alternatives. However, the tomahawk remains the gold standard for presentation and depth of flavor.

The Anatomy of the Cut

The tomahawk contains the longissimus dorsi (the eye of the ribeye), the spinalis dorsi (the ribeye cap), and the complexus. The cap is widely considered the most delicious muscle on the entire animal due to its incredible tenderness and fat content. In a 1.5 kg steak, these muscles are thick and robust, requiring gentle heat to reach their peak texture.

Summary of Key Points

• A 1.5 kg tomahawk is a thick-cut ribeye with a long, Frenched bone.
• The thickness (usually 2.5 to 3 inches) dictates a two-stage cooking process.
• High marbling requires specific temperature management to render the fat properly.

Preparation: The Foundation of Success

The journey to a perfect steak begins long before the heat is applied. With a 1.5 kg piece of beef, preparation is about managing moisture and temperature. If you take a cold steak straight from the refrigerator and drop it onto a hot grill, the exterior will burn before the interior even begins to warm up.

Thawing and Tempering

If your steak has arrived via Home Delivery and was kept chilled, ensure it is completely thawed. For a 1.5 kg cut, we recommend removing it from the refrigerator at least 60 to 90 minutes before cooking. This process, known as "tempering," allows the internal fibers to relax and ensures a more even cook.

The Importance of Dry Surface

Moisture is the enemy of a good sear. Use paper towels to pat the entire surface of the steak, including the edges, until it is bone-dry. A dry surface allows the Maillard reaction—the chemical reaction between amino acids and reducing sugars that gives browned food its distinctive flavor—to happen immediately upon contact with heat.

Seasoning a Heavyweight

A 1.5 kg steak has a lot of internal volume that won't be touched by surface seasoning. Therefore, you must be generous. Use high-quality kosher salt or sea salt. We recommend salting the steak at least 45 minutes in advance (or even the night before, left uncovered in the fridge). This allows the salt to draw out moisture, dissolve into a brine, and then be reabsorbed into the meat, seasoning it deeply and breaking down protein structures for a more tender result.

If you are looking for other premium cuts to practice your seasoning techniques, consider the 36 Ounce Porterhouse or a Wagyu Flat Iron, both of which benefit immensely from proper dry-brining.

Summary of Key Points

• Temper the steak at room temperature for 60-90 minutes.
• Pat the surface completely dry to ensure a superior crust.
• Season aggressively with salt to penetrate the thick 1.5 kg muscle.

How Long to Cook 1.5 kg Tomahawk Steak: The Reverse Sear Method

When people ask how long to cook 1.5 kg tomahawk steak, the most reliable answer involves the reverse sear method. Unlike the traditional method of searing first and finishing in the oven, the reverse sear flips the script. You cook the meat low and slow first, then finish with a high-heat sear. This method is foolproof for thick steaks because it provides maximum control over the internal temperature.

Step 1: The Low and Slow Phase

Preheat your oven or smoker to a low temperature, typically between 105°C and 120°C (225°F to 250°F). Place the seasoned 1.5 kg tomahawk on a wire rack set over a baking sheet. The rack is crucial as it allows hot air to circulate around the entire steak, including the bottom.

Timing Guidance: For a 1.5 kg tomahawk to reach an internal "pull temperature" of 48°C (for a final medium-rare), it will generally take 45 to 60 minutes at 120°C. However, time is only a guideline. The density of the meat and the accuracy of your oven will vary. Always use a digital meat thermometer.

Step 2: The Rest Before the Sear

Once the steak reaches your target internal temperature, remove it from the oven. Tent it loosely with foil and let it rest for about 10 to 15 minutes. This might seem counterintuitive, but it allows the surface to dry out even further and prevents the internal temperature from skyrocketing during the final sear.

Step 3: The Sizzling Finish

Now, you want the highest heat possible. This can be achieved on a cast-iron skillet, a heavy-duty grill, or even under a high-heat broiler. Lightly coat the steak with a high-smoke-point oil (like avocado or grapeseed oil).

Timing Guidance: Sear the steak for 1 to 2 minutes per side. Because the meat is already cooked through, you are only looking for color and crust. Don't forget to use tongs to sear the thick edges of the fat cap.

Why This Method Wins

The reverse sear produces a more tender steak because the gentle heat doesn't shock the muscle fibers. It also results in a better crust because the oven time dries out the surface of the meat perfectly. If you enjoy this method, you can apply it to other thick-cut options from our Beef Collection, such as the Côte de Boeuf.

Summary of Key Points

• The reverse sear is the preferred method for a 1.5 kg tomahawk.
• Low-temp cooking takes approximately 45-60 minutes.
• The final sear should be brief (1-2 minutes per side) at very high heat.

Alternative Method: Traditional Grilling

While the reverse sear is excellent for precision, many outdoor enthusiasts prefer the classic ritual of the grill. To cook a 1.5 kg tomahawk on the grill, you must utilize "two-zone" cooking. This means having one side of the grill very hot (direct heat) and the other side much cooler (indirect heat).

The Direct Sear

Start by searing the steak over the hot coals or burners. You want to develop a deep, charred crust. For a 1.5 kg cut, spend about 3 to 4 minutes per side on the direct heat. Be mindful of flare-ups; the high fat content of a tomahawk can cause flames to jump, which may lead to a soot-flavored crust rather than a delicious char.

The Indirect Finish

Once seared, move the steak to the cooler side of the grill. Close the lid to create an oven-like environment. This allows the center of the 1.5 kg steak to come up to temperature without burning the outside.

Timing Guidance: Depending on your grill's temperature, the indirect phase can take anywhere from 20 to 30 minutes. Again, a thermometer is your best friend here.

Protecting the Bone

One hallmark of a professional tomahawk preparation is a clean, white bone. To achieve this on a grill, wrap the exposed bone in aluminum foil. This prevents the bone from charring and becoming brittle, preserving that iconic look found in our Tomahawk product photos.

Summary of Key Points

• Use two-zone grilling: direct heat for searing, indirect for finishing.
• Sear for 3-4 minutes per side, then cook indirectly for 20-30 minutes.
• Wrap the bone in foil to maintain its aesthetic appeal.

Determining Doneness: The Temperature Guide

When discussing how long to cook 1.5 kg tomahawk steak, we must emphasize that temperature is the only absolute. A 1.5 kg steak is too expensive and too high-quality to leave to guesswork or the "finger poke" test.

Internal Temperature Chart

For the best results, aim for these final temperatures after resting:

• Rare: 52°C (125°F) - Cool red center.
• Medium-Rare: 57°C (135°F) - Warm red center, the professional choice for ribeye.
• Medium: 63°C (145°F) - Warm pink center.
• Medium-Well: 68°C (155°F) - Slightly pink center.

The Concept of Carryover Cooking

Crucially, you must remove the steak from the heat source before it reaches your target temperature. This is known as "pull temperature." For a 1.5 kg steak, the internal temperature will continue to rise by 3 to 5 degrees Celsius while it rests.

• If you want Medium-Rare (57°C), pull the steak at 52°C to 53°C.

Where to Measure

When inserting your thermometer, go into the thickest part of the meat, avoiding the bone. The bone conducts heat differently than the muscle, and touching it with the thermometer probe will give you an inaccurate reading.

Summary of Key Points

• Medium-rare (57°C) is highly recommended for rendered fat and tender meat.
• Pull the steak 5 degrees early to account for carryover cooking.
• Always measure in the thickest part of the muscle, away from the bone.

The Critical Role of Resting

If you take a 1.5 kg tomahawk off the grill and slice it immediately, you will see a pool of juices flood the cutting board. These are the juices that should be inside the meat fibers, providing moisture and flavor.

What Happens During Resting?

During cooking, the muscle fibers in the steak contract and push moisture toward the center. Resting allows those fibers to relax and reabsorb the juices. For a 1.5 kg steak, a rest of 15 minutes is the absolute minimum. Because of the steak's massive size and the heat-retaining property of the bone, it will stay hot for a long time.

How to Rest Properly

Place the steak on a warm plate or a wooden carving board. Tent it loosely with foil—do not wrap it tightly, or the steam will soften the crust you worked so hard to create.

For those who prefer smaller, quicker-cooking steaks for weeknight dinners, like our 10 Ounce Filet Mignon or the 14 Ounce Boneless New York Strip Steak, resting is still important, but usually only requires 5 to 7 minutes. The 1.5 kg tomahawk is a different beast and demands patience.

Summary of Key Points

• Resting allows juices to redistribute, ensuring a moist steak.
• A 1.5 kg steak requires a minimum 15-minute rest.
• Tent loosely with foil to preserve the crust.

Carving and Serving the Masterpiece

Presentation is half the fun with a tomahawk. Once the steak has rested, it is time to carve.

Step-by-Step Carving

1. Remove the Bone: Hold the bone handle and run a sharp carving knife along the curve of the bone to separate the entire eye of the ribeye in one piece.
2. Slice the Meat: Turn the meat so you are slicing against the grain. Cut the steak into thick strips, roughly 1 cm to 1.5 cm thick. Slicing against the grain breaks up the muscle fibers, making every bite even more tender.
3. Plate with Style: Fan the slices out on a large platter and place the bone next to them. This maintains the "tomahawk" look while making it easy for guests to serve themselves.

Seasoning the Slices

A professional touch is to sprinkle a little flaky sea salt (like Maldon) over the freshly sliced meat. This provides a crunch and a burst of flavor that enhances the beef's natural richness. If you want to take it even further, a dollop of compound butter made with garlic and herbs melting over the slices is spectacular.

Summary of Key Points

• Remove the meat from the bone first before slicing.
• Slice against the grain for maximum tenderness.
• Use flaky salt for a final flavor boost.

Gourmet Accompaniments and Pairings

A steak as grand as a 1.5 kg tomahawk deserves side dishes that can stand up to its bold flavors. When planning your menu from our Shop, consider textures and acidity to balance the richness of the ribeye.

Classic Steakhouse Sides

• Truffle Mashed Potatoes: The earthy aroma of truffle complements the beefy depth of the ribeye perfectly.
• Charred Broccolini: Use a bit of lemon juice and garlic to provide an acidic counterpoint to the fat.
• Creamed Spinach: A traditional favorite that adds a velvety texture to the meal.

Surf and Turf Inspiration

Why stop at beef? Turn your meal into a grand feast by adding fresh seafood from Land and Sea Delivery. A side of grilled garlic butter shrimp or a lobster tail can transform a tomahawk dinner into a world-class surf and turf.

Sauce Pairings

While a high-quality steak from our Beef Collection is delicious on its own, a well-made sauce can elevate it.

• Chimichurri: The brightness of parsley, oregano, and vinegar cuts through the richness.
• Béarnaise: A classic French tarragon-infused butter sauce.
• Red Wine Reduction: Deep, savory, and sophisticated.

Summary of Key Points

• Pair with sides that offer acidity to balance the steak's fat.
• Consider adding seafood for a luxury surf and turf experience.
• Classic sauces like Chimichurri or Béarnaise work exceptionally well.

Storage and Handling Best Practices

When you invest in a premium 1.5 kg tomahawk steak via Home Delivery, you want to ensure it is handled with care to maintain its quality and safety.

Receiving Your Delivery

Upon arrival, check the packaging. If you aren't cooking the steak immediately, it should be placed in the coldest part of your refrigerator. Keep it in its original vacuum-sealed packaging until you are ready to begin the tempering process.

Longevity

A fresh, vacuum-sealed steak can typically stay in the refrigerator for several days. However, always check the specific "use by" date on the label. If you need to store it longer, you can freeze it, but for the best culinary experience, we recommend enjoying it fresh.

Handling Leftovers

On the rare occasion that you have leftovers from a 1.5 kg steak, store them in an airtight glass container in the fridge for up to two days. Leftover tomahawk makes for the world's best steak sandwiches or a decadent steak and egg breakfast. When reheating, do so gently in a low oven to avoid overcooking the meat.

Summary of Key Points

• Store in the coldest part of the fridge in original packaging.
• Use within a few days for optimal freshness.
• Reheat leftovers gently to preserve texture.

Conclusion

Mastering the 1.5 kg tomahawk steak is a rewarding journey that combines culinary technique with a passion for quality ingredients. By understanding that time is a secondary factor to internal temperature, you can ensure that every steak you cook is a masterpiece of flavor and tenderness. Whether you choose the precision of the reverse sear or the ritual of the grill, the keys to success remain the same: proper preparation, generous seasoning, and the patience to let the meat rest.

At Land and Sea Delivery, we are committed to bringing this level of culinary excellence directly to your kitchen. From the impressive Tomahawk to more delicate cuts like the 14 oz Bone-In Filet Mignon or the versatile Outside Skirt Steak, our selection is designed for those who value the journey from the land and sea to the table.

We invite you to explore our full Shop and browse our premium Beef Collection to find your next centerpiece. With our reliable Home Delivery service, the finest cuts are only a few clicks away. Fire up the oven or the grill, and prepare to create a dining experience your guests will never forget.

FAQ

How do I know if my 1.5 kg tomahawk is actually cooked?

The only definitive way to know is by using a digital meat thermometer. For a medium-rare finish, the internal temperature should be 57°C (135°F) after resting. Because of the thickness of a 1.5 kg cut, visual cues or time-based estimates are often unreliable.

Can I cook a 1.5 kg tomahawk entirely in a frying pan?

It is not recommended. Because a 1.5 kg steak is usually 2.5 to 3 inches thick, the outside would burn long before the center reached a safe or palatable temperature. Always use a two-stage method like the reverse sear (oven then pan) or two-zone grilling.

How many people does a 1.5 kg tomahawk steak feed?

Generally, a 1.5 kg tomahawk will comfortably feed 2 to 3 adults. While the weight is high, keep in mind that a significant portion of that weight is the bone. However, the richness of the ribeye means that smaller portions are often very satisfying.

Should I cut the fat off before cooking?

No. The fat on a tomahawk, especially the marbling and the exterior fat cap, provides essential flavor and moisture. As the steak cooks, this fat renders and bastes the meat. You can trim any excess fat after cooking and resting if you prefer.

Why is my tomahawk tough?

Toughness usually results from one of three things: skipping the tempering process (cooking it cold), overcooking the meat beyond medium, or failing to let the steak rest after cooking. Following the reverse sear method and allowing a 15-minute rest will yield the most tender results.

Does the bone add flavor?

While there is a healthy debate among chefs, many believe the bone marrow and the connective tissues near the bone impart a deeper, "beefier" flavor to the surrounding meat. Regardless of the flavor impact, the bone certainly provides a thermal buffer and an unmatched visual presentation.

How should I store the steak if I’m not cooking it today?

Keep it in its original vacuum-sealed packaging and place it in the coldest part of your refrigerator. It is best to cook it within 3-5 days of delivery for maximum freshness. If you must freeze it, wrap it tightly in additional freezer-safe material to prevent freezer burn.