Freeze it, thaw it, slap it on pie. When you have enough, freeze it for the next time.

Cool Whip Original is made of water, hydrogenated vegetable oil (including coconut and palm kernel oils), high fructose corn syrup, corn syrup, skimmed milk, light cream (less than 2%), sodium caseinate, natural and artificial flavor, xanthan and guar gums, polysorbate 60, sorbitan monostearate, sodium polyphosphate, and beta carotene (as a colouring).

en.wikipedia.org/wiki/Cool_Whip