If you want a recipe for salt-free (low carb) barbecue sauce from scratch (because maybe you can't eat the Heinz salt-free ketchup because it's high in potassium or you can't find it), go here.
This recipe is what you need to take a bottle of Heinz salt-free ketchup and turn it into barbecue sauce. I usually don't like products that use potassium chloride in place of salt. They generally have a bitter aftertaste but one exception is this Heinz salt-free ketchup. You'll still taste a little of that potassium chloride in it but it's pretty subtle and it'll satisfy your craving for that sticky, sweet ketchup you grew up eating. Use this ketchup as a base for a very quick and easy barbecue sauce that you can make in the microwave.
Ingredients:
1 14-ounce bottle of Heinz salt-free ketchup
5 tablespoons apple cider vinegar
2 tablespoons molasses
1 tablespoon onion powder
1 tablespoon paprika
1 tablespoon smoked paprika
1 tablespoon salt-free mustard
1 tablespoon dark brown sugar
1 tablespoon honey
optional: dash of cayenne pepper, liquid smoke, or black pepper
Mix everything together in small saucepan and simmer on medium-low until the sugar has all dissolved. Alternatively, mix all the ingredients together in a microwave-safe bowl and stir to combine. Microwave for 30 seconds (covered), stir, and then repeat until all sugars have dissolved. This sauce will keep for weeks in the refrigerator.