I drank Yak butter tea in Tibet. It did seem to help with the high-altitude hiking. The taste was bareable, in the context of the trip.
Back home I drink coffee. Black. Strong. Occasionally as a desert I’ll have an espresso with sugar. I like the coffee-flavored sugar granules at the bottom of the cup.
I don’t think I’ll ever try butter in coffee.
dessert, not desert
Used to go ski-camping in CO. Believe it or not, in such a circumstance getting enough calories in a day is a problem. Enough calories is necessary to generate body heat.
So we used to carry a stick of butter per person per day, which is about 800 calories.
Added it to just about everything, especially tea. Didn’t try it with coffee, not being a coffee drinker at the time.