Barbecue sauce is a complex condiment that combines a few different flavor sensations: umami, sweet, smokey, spicy, and tangy. To turn ketchup into BBQ sauce, you only need two ingredients -- maple syrup and bourbon -- which will mimic those five flavors when added to the ketchup. The bourbon covers the smokiness and some of the spicy flavors, while the maple syrup brings the sweetness; the umami and tangy flavors come through when the three ingredients are mixed. The result is close enough to barbecue sauce to fool your diners and can be made in a pinch, as it only requires five minutes of heating in a saucepan to cook off some of the alcohol. Then, cool the sauce down a bit before serving it as a condiment or pour it from the pot over meat fresh from the grill or oven.