As promised, Brint's homemade barbecue sauce recipe, in its (almost) entirety:
Ingredients
1 cup ketchup (Heinz is soy-free)
3 Tablespoons mustard
1 Tablespoon cajun seasoning (Brint mixes his own and refuses to share the recipe, sorry!)
1/4 cup brown sugar
1/2 cup apple cider vinegar
1/2 cup water
Mix everything together in a sauce pan and simmer on low for 5-10 minutes!d If you like it sweeter, add more brown sugar. If you like it tangier, add more cider vinegar. It's very versatile. You can refrigerate the leftovers for future use.