Ingredients:

1/4 cup chopped onion
1 garlic clove, crushed
1/2 teaspoon chili powder
1 tablespoon butter
1/2 cup tomato sauce
2 tablespoons distilled vinegar
1 tablespoon honey
1/4 teaspoon salt
1/4 teaspoon ground black pepper
1 1/2 pounds flank steak

Method:

1. In a small saucepan, cook chopped onion, crushed garlic clove, and chili powder in butter until tender. Stir in tomato sauce, vinegar, honey, salt, and pepper; bring to boiling, stirring constantly. Boil for 5 minutes, or until slightly thickened.
2. Meanwhile, pat dry flank steak and score diagonally into diamonds on both sides. Brush with sauce; grill over medium coals for 7 minutes until done, brushing occasionally with the remaining sauce.