No sugar in this one, but this sweet bourbon BBQ sauce recipe isn't sugar free, it just gets its sweetness from a healthy dose of maple syrup and molasses. It's absolutely delicious on any grilled meat.
Note that there's quick a lot of “runny” fluid in this recipe so if you're looking for a thick sauce this one does to a little time on the simmer.
Place a saucepan on a medium heat, melt the butter and olive oil and fry the onions until golden. After that it's as easy as throwing in the rest of the ingredients' turn the heat down and stir it whilst it comes to simmer to ensure that all the ingredients are well mixed together. Let it simmer until it's of the consistency that you want, stirring often.