Probably the easiest BBQ sauce you can make, this only has five ingredients but tastes great as a dipping sauce, on sandwiches or on your favorite smoked treat.
Mix the ingredients in a saucepan over low heat, stirring often for at least one hour. It should be reduced enough to fit into the ketchup bottle once it has thoroughly cooled.
Regarding Ketchup: Using ketchup imparts the preservatives that will allow this sauce to last several months in the refrigerator. Both Heinz and Hunts now make varieties that use sugar rather than HFCS. If you’re totally against using ketchup as the base, you can use tomato sauce/paste and additional vinegar.