We make a no cook Alfredo.
It’s about 4 parts Heavy whipping cream, 2 parts Parmesan, 1 part melted butter plus salt & pepper to taste.
Mix all the cold/dry ingredients together and slowly whisk in the butter. The goal is to whip some air into the mixture until it take on the consistency of a milk shake. Once it reaches that point, it won’t separate out again and you can portion out a consistent recipe fast and accurately.
We make ours in a 10-gallon sauce crock and whip it with a food-safe mixer attachment on a power drill, so the recipe scales well. Just takes longer to set up.