"recipe for making coffee"?????? I fully understand your question, but having hard time "really understanding what you are trying to say"....
Aha... now I understand.
3 in 1 ready-to-drink coffee sticks!!!!
I am sure there are certain portion %, but it should be calculated depends on where you want to sell them.
if you want to sell them in China, you need to add more milk power and sugar.
USA, bit less power and same amount of sugar as China and so forth...
however, I do not know exact % of recipe. Nonetheless, it shouldn't be difficult to figure that out. Just experiment some.