Gather your ingredients: AT HOME. Yep, there's a bit of pre-work, but it's another part of what makes this dish so easy at camp:
Combine all of these in a bowl with a lid and give a good shake.
PS - since this has become a staple for us, and I'm all about making the prep work easy... check this out: a small yogurt contain has become my dry ingredients holder (with a copy of the recipe on the lid)
and my empty peanut butter jar (Remember Camp Pudding? It's the same jar I use for that recipe) for all my liquid ingredients.