I love this frappé as written and wanted to keep it dairy-free, but if you want a richer result, feel free to add a few tablespoons of half and half or heavy whipping cream. Three tablespoons of half and half will keep you in Fuel Pull territory, but using over one tablespoon of heavy whipping cream will give you a THM:S.
I prefer to use collagen in this recipe because it is tasteless and dairy-free, but you could try using
whey protein instead if you don't mind the taste. It will probably fluff up more.
As written (without toppings), this frappé can actually be used in a Deep S setting! It doesn't have any fats of its own but can help fill you up along with a Deep S meal. Do not add half and half or heavy cream if using this in a Deep S setting.