BBQ Beef Chuck Steak

Ingredients

• 1 beef Chuck Arm Steak, cut 3/4 to 1 inch thick (about 2 pounds)
• 1 cup finely chopped onion
• 1 cup ketchup
• 1/3 cup packed brown sugar
• 1/3 cup red wine vinegar
• 1 tablespoon Worcestershire sauce
• 1/8 to 1/4 teaspoon crushed red pepper