On my past several winter rides I've taken coffee along. The first round was a camp stove and fresh brew on the trail. The past few times I have had vacuum thermoses along with pre-made brew.

I am not drinking out of my normal bottle much because it is cold. Though, I still have some Gatorade along. On my warm weather rides I have a couple bottles filled with Gatorade and other types of electrolyte mixes/powders.

So my question is if anyone has come up with something that works well for adding to coffee. I could mix in some of what I have, but something tells me fruity flavors aren't going to work well with hot coffee. Thoughts?