I made the sauce on-the-fly, to taste. I started with about 1 liter of Mountain Dew, a stick of butter, 1/4 cup of brown sugar and 1/4 cup of BBQ sauce. After those were combined I added more BBQ sauce and a little more brown sugar. Start with a little of each ingredient (other than the Mountain Dew go ahead and start with a liter), taste, and add more as you desire.