Maple BBQ Sauce

Name: Maple BBQ Sauce
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Yield: 4 cups
Ingredients: 1 cup ketchup; 1 cup onion, finely chopped; 3/4 cup maple syrup; 1/4 cup lemon juice; 1/4 cup brown sugar, firmly packed; 1/4 cup water; 2 tablespoons garlic, finely chopped; 2 tablespoons Worcestershire sauce; 2 teaspoons grated lemon rind; 1/2 teaspoon salt