Berry Fine Baby Back Ribs

• 2 slabs baby back pork ribs
• 260 gr raspberry
• 60 ml worcestershire sauce
• 60 ml water
• 40 gr brown sugar
• 30 ml cider vinegar
• 18 gr onion (minced)
• 16 ml ketchup
• 7 gr onion powder
• 6 gr chili powder