I have not tried omitting the 'sugar' completely from this homemade condiment recipe, and have opted to use unsulphured molasses + honey/maple syrup. Using molasses, gives this easy barbecue sauce a deep rich taste and honey/maple syrup adds a touch of sweetness. Omitting these might cause this healthy bbq sauce to lack flavor depth. Some readers have omitted molasses for 1 tablespoon of honey, but I have not tested that.