How to Cook a Top Sirloin Roast

Step 1

Trim meat of any excess fat.

Step 2

If the top sirloin roast did not come tied up, use kitchen twine to tie the roast up nice and tight.

Step 3

The garlic cloves can be cut in half, in slivers or left whole. Use a paring knife to poke a one inch slot in the roast. Stick in a piece of garlic. Do this all around the roast with the remaining garlic.

Step 4

Sprinkle the roast with the salt, pepper, thyme and oregano.

Step 5

Place the roast in a roasting pan with a rack.

Step 6

Preheat the oven to 450F. Place the roast in the oven and cook for 15 minutes.

Step 7

Turn the heat down to 325F and cook to desired doneness. The internal temperature of a medium rare roast beef is 135F and should take around 3 hours of total cooking time.