I’m a very casual cocktail drinker and like to mostly just mix up stuff that I feel like would be good even if I’m not sure if it would work (I have a pretty good win streak). Tonight I used 4oz milk, 2oz vanilla vodka, 2 oz butterscotch schnapps, and about 1/2 oz brown sugar simple syrup. I shook it, strained it, but then added the leftover foam in the shaker to the top of the glass. The result was PERFECT. The milk balances the drink out instead of making it too sweet like cream soda would. Highly recommend!