This one is so simple. I felt like a genius for a minute after creating it.
3/4 scoop chocolate casein powder
1 peppermint tea bag
10 oz boiling water
Mix casein with a couple of oz warm tap water. Mix it well so there are no clumps. Slowly add boiling water while stirring rapidly. Steep mint tea bag in mixture for 3-5 mins depending on how strong you want it. Drink.