Bulletproof coffee is one of them. (they put 2tbs unsalted grass-fed butter + 2tbs of brain octane or XCT oil into hot coffee) - I have not tried it yet.
or
you can put 1/3 to 1/2 scoop of whey protein powder into their coffee before / while / after work out. Whey comes in different flavors and some of them can mix well with hot or cold coffee.
for me, I tried with cold coffee + vanilla whey that I bought form Costco few times, long time ago. basically, I wasn't drinking coffee but I was drinking coffee/vanilla flavored protein powder drink. Never tried Hemp.
however, wouldn't it be much better and easier to drink them separately? unless you really like the taste of them combined.
BTW, I forgot to mention.
Best protein to add should be Vanilla whey.
for the coffee, the best coffee for this would be just INSTANT COFFEE. (just one or two teaspoons, please)
for this, Instant coffee works the best.