Ingredients

• 1 onion (finely chopped)
• 1 lemon
• 1 ribs (apart)
• 5 pounds pork spare ribs
• 1 cup water
• 1 cup commercial barbecue sauce
• 1 cup tomato catsup
• 1/2 cup vinegar
• 1/2 cup butter
• some pepper
• some tabasco sauce