Garlic Butter Sirloin Steak

Garlic Butter Sirloin Steak proves that a leaner, more accessible cut can deliver genuinely restaurant-quality results when the fundamentals are handled with care. Sirloin lacks the marbling of ribeye or the loose grain of skirt steak, which means the technique here does more of the work: proper tempering, thorough drying, and a genuinely hot pan are what separate a steak with a real crust from one that merely turns grey and steams. The garlic butter is made entirely separately and kept at room temperature so it stays spreadable, then added only once the steak is off the heat — this timing matters specifically because butter added during searing burns at high temperatures, while butter melted onto a resting steak infuses garlic and parsley into the meat's own juices without ever scorching. The steaks are seared undisturbed for a full 3 minutes per side, a discipline that builds a genuine crust rather than the pale, unevenly browned surface that comes from flipping too early or too often. The result is tender, deeply flavourful, and specifically achievable on a weeknight — proof that simple technique and quality ingredients outperform complexity.

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Prep Time 45

Cook Time 10

Total Time 55

Servings: 4

Course: Main Course

Cuisine: American

Calories: 420

Ingredients Method Notes

Ingredients

For the Garlic Butter

60 g unsalted butter softened
4 garlic cloves minced
15 g fresh parsley finely chopped
3 g flaky sea salt
2 g black pepper

For the Sirloin Steak

800 g sirloin steak 2 steaks, about 2.5cm thick
20 ml olive oil
8 g fine sea salt
4 g freshly ground black pepper

Method

Prepare the Garlic Butter

In a small bowl, mix the 60g of softened butter with the 4 minced garlic cloves, 15g of finely chopped fresh parsley, 3g of flaky sea salt, and 2g of black pepper until thoroughly combined. Set aside at room temperature so it remains spreadable — cold, firm butter is harder to work with and melts less evenly once it meets the hot steak later.

Temper the Steaks

Remove the 800g of sirloin steaks from the refrigerator 30 minutes before cooking. Pat them completely dry with paper towels to ensure proper searing. This step is crucial for developing a good crust — any surface moisture left on the meat steams rather than sears, and steaming is what produces a grey, pale exterior instead of a genuine brown crust.

Season Generously

Season both steaks on all sides with the 8g of fine sea salt and 4g of freshly ground black pepper, pressing the seasoning into the meat so it adheres well. Generous, even seasoning at this stage is what carries through to every bite, since sirloin's leaner structure doesn't have the fat content to distribute flavour on its own the way a more marbled cut would.

Heat the Pan

Place a heavy skillet over high heat and let it preheat until smoking hot. This ensures immediate searing contact with the meat rather than a slow, gradual heating that would let moisture escape before browning begins. Add the 20ml of olive oil and swirl to coat.

Sear the Steaks

Carefully place the steaks in the pan and sear undisturbed for 3 minutes to develop a deep brown crust. Flip and cook another 3 minutes on the second side for medium-rare doneness. Resisting the urge to move or flip the steaks early is specifically what allows the crust to fully form — disturbing the meat too soon interrupts the browning process and produces a patchy, uneven sear instead.

Add the Garlic Butter

Transfer the steaks to a cutting board immediately after cooking. Top each steak with a generous tablespoon of the prepared garlic butter while the meat is still hot. The residual heat of the steak melts the butter into the meat's surface, infusing garlic and parsley directly into the juices without the risk of burning that adding butter to the hot pan would carry.

Rest and Serve

Let the steaks rest for 5 minutes, allowing the garlic butter to melt and mingle with the natural juices. Resting is not optional — cutting into the steak immediately would release those juices onto the board rather than back into the meat. Slice against the grain and serve with the pooled butter from the board drizzled over the top.

Notes

Tempering the steaks for the full 30 minutes matters more than it might seem for a cut this thick. A cold steak straight from the refrigerator sears unevenly, developing a well-browned exterior while the interior lags noticeably behind — tempering lets the meat come closer to room temperature throughout, so the centre reaches the desired doneness at roughly the same time the crust finishes forming.

Sirloin's leaner profile means it's specifically more forgiving of precise timing than a fattier cut, but also less forgiving of overcooking — without abundant marbling to keep the meat moist past medium, pushing sirloin beyond medium-rare to medium-well risks a noticeably drier result.

The garlic butter can be made well ahead and kept refrigerated, then softened again at room temperature before serving — this is a genuinely convenient make-ahead component in an otherwise fast, weeknight-friendly recipe.