Barbecue Beef Burger

재료

• 1 lb. beef (do not brown first!)
• 1/2 c. ketchup
• 1 Tbsp. sugar
• 3/4 Tbsp. mustard
• 1/2 Tbsp. vinegar
• 3/4 tsp. Worcestershire sauce
• 1 Tbsp. butter
• 1/4 c. chopped onions
• 1/2 tsp. salt
• dash of pepper
• small amount of water (enough to moisten)

설명