Ingredients

4 jalapeno peppers, stemmed
4 cloves garlic, peeled
1 1/2 teaspoons cracked black pepper
1 tablespoon coarse salt
1/4 cup lime juice
1 tablespoon dried oregano
1 1/2 pounds top sirloin steak

Directions

Combine jalapenos, garlic, pepper, salt, lime juice and oregano in a blender. Blend until smooth.

Place steak in a shallow pan or large resealable plastic bag. Pour jalapeno marinade over the steak, and turn to coat. Cover pan or seal bag; marinate in the refrigerator 8 hours or overnight.

Preheat an outdoor grill for high heat, and lightly oil the grill grate.

Drain and discard marinade. Grill steak 5 minutes per side, or to desired doneness.