My favorite way to make coffee more flavorful! First I get a cup of it(obviously), then I'll put some hazelnut creamer in. Not a lot, but just enough to flavor it slightly. Then I'll get out heavy whipping cream and pour some of that in. Next is a little hot chocolate, then I'll stir it and wait a little while. I might add a little sugar also, if I need to.
What is the best or your favorite way to flavor coffee more?