This recipe was very easy to follow. On the back of the box of the pudding, it tells you how many servings it makes. That is how you can tell which one to use in this recipe. (it is the small box) My only suggestion is that when you combine everything in the bowl to mix, that you do it quickly as the pudding sets up quick making it a little difficult to work with. Will make it again, and often!
Also, I too added more coffee I used 1 and 1/2 TBSP.