top secret bbq sauce

Ingredients For top secret bbq sauce

• 36 oz

  heinz ketchup (recommended brand for best results)
• 18 oz

  water
• 1 1/2 tsp

  worcestershire sauce
• 1 1/2 tsp

  liquid smoke flavoring
• 3 tsp

  onion salt
• 1 1/2 Tbsp

  fresh minced garlic
• 3 Tbsp

  dried mustard powder
• 3 Tbsp

  yellow mustard
• 2 1/4 c

  brown sugar, firmly packed
• 7 Tbsp

  lemon juice
• 1 Tbsp

  black pepper
• 1 Tbsp

  cayenne pepper
• 3 Tbsp

  white vinegar
• 1 1/2 stick

  real butter