Mince 2 to 3 garlic cloves and 2 tablespoons fresh rosemary leaves.
Add 1 teaspoon salt (or to taste) and mince it a little longer. You can also do this with a mortar and pestle.
Rub the paste evenly over both sides of 4 sirloin strip steaks. It's not a thick layer, just enough to flavor the meat.
Heat a skillet over medium/high heat and melt 3 tablespoons butter. Add 1 tablespoon olive oil to prevent it from burning too much.
Add steaks, season them with ⅛ teaspoon freshly ground black pepper, or to taste, and cook 1 or 2 minutes on each side.
Turn it over, cook it 2 or 3 more minutes and add a splash of white or red wine. It will steam furiously. Cook the steak 2 or 3 additional minutes for medium rare. Remove the skillet with the meat from the heat, and let it rest for 3 to 5 minutes. This redistributes the juices and is an important step.
Meanwhile, cook the wine mixture until reduced and a sort of sauce is formed. It will not be much, just enough to glaze.
Slice the steaks and serve them with the juices and sauce.