Ingredients

1 onion, cut into one-inch pieces
1 green pepper, cut into one-inch pieces
1 red pepper, cut into one-inch pieces
1 bunch fresh cilantro
6 garlic clove
1 tablespoon olive oil
2 teaspoons salt
1 teaspoon fresh ground pepper
1 lb flank steak, scored on both sides

Directions

Place onion, peppers, cilantro and garlic in food processor. Add olive oil, salt and pepper. Process till almost smooth.Spread one cup of puree over the steak, working it into the meat. Marinate 20 minutes or more.Preheat grill or broiler. Broil without removing puree until meat is done to your liking. (About 7 minutes per side for most people.).