Yankee Brisket Pulled Barbeque

• 3 1/2 bottle of liquid smoke
• 1,000 gr beef brisket
• 240 ml ketchup
• 240 gr onions (chopped)
• 120 ml chili sauce
• 60 ml cider vinegar
• 55 gr dark brown sugar
• 45 ml worcestershire sauce
• 30 ml dusseldorf mustard
• 16 ml dark molasses