Ingredients

• 1 onion (finely chopped)
• 1 lemon
• 1 ribs (apart)
• 2,300 gr pork spare ribs
• 240 ml water
• 240 ml commercial barbecue sauce
• 240 ml tomato catsup
• 120 ml vinegar
• 110 gr butter
• some pepper
• some tabasco sauce