Sirloin with cowboy butter sauce

Sirloin with cowboy butter sauce is perfect for those who love spiced butter. You can use whatever vegetables and potatoes you like, but I used grilled corn and baked pearl potatoes.


6 tablespoons butter, melted
Juice and zest of half a lemon
4 cloves garlic, finely chopped
1 tablespoon dijon mustard
A pinch of cayenne pepper
1/4 tsp paprika
2 tablespoons fresh chopped parsley
1 tablespoon freshly chopped chives
2 teaspoons finely chopped thyme
1/4 teaspoon crushed red pepper flakes
Salt and freshly ground black pepper

To make the cowboy butter sauce recipe: Combine melted butter, lemon juice, garlic, mustard, cayenne, and paprika in a small bowl. Whisk the sauce to combine.

Stir in parsley, chives, crushed red pepper flakes and thyme and season with salt and pepper.

The meat:

The tenderloin should have been at room temperature for approx. 30 minutes before frying so that the pan does not cool down and cause the meat to boil instead of roasting. Season with salt and pepper just before frying and brown the fillet quickly in the pan. Place the fillet in an ovenproof dish, insert a roasting thermometer and place in the oven at 125 degrees.

The fillet is red when it has a core temperature of 55-60 degrees and pink when the roasting thermometer shows 60-65 degrees. Let the fillet rest for approx. 15-20 minutes before slicing, so it retains as much of its juiciness as possible.

If you want to use sous vide:

The tenderloin is placed together with fresh thyme, salt and pepper in a vacuum bag and placed in a sous vide at 56 degrees for two hours, before being quickly fried on all sides in a frying pan. If you don't have a sous vide, you can season the fillet, brown it in butter in a frying pan and put it in the oven at 100 degrees until the core temperature is 60 degrees. Let it rest before slicing. If you don't have a sous vide, fry it on all sides in the frying pan, before placing it in an ovenproof dish and putting it in the oven at 200 degrees to the desired core temperature.


You can find the recipe for baked pearl potatoes and many other potato varieties here .

The blog has many exciting recipes with beef. You can find them here .

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