Step 1

In a large bowl, gently combine meat, onion powder, garlic powder, salt, and pepper. Handle the mixture as gently and sparingly as possible (over-mixing can make the burger tough).

Step 2

Divide mixture into 4 equal portions. Shape each into a ball, then flatten the balls into discs, about 4 inches in diameter. Make them thinner in the center.

Step 3

Heat a large skillet over medium-high heat. Add the butter and swirl the pan to coat the bottom.

Step 4

Cook the patties to your desired doneness. Because sirloin is so lean, I like to cook it to medium-rare doneness (internal temperature of 140°F), about 3 minutes per side.

Step 5

Serve the patties on toasted buns with your favorite burger toppings.