Old Fashioned Baked Beans

• 1 great northern
• 1,000 gr mixed beans great
• 180 gr coarse onion (chopped)
• 120 ml vinegar (white)
• 60 ml molasses
• 60 ml cider vinegar
• 60 gr onion (chopped)
• 55 gr brown sugar
• 34 gr sugar (white)
• 16 ml dry mustard