Stiffen marshmallow fluff for topping cupcakes?
I tried putting less but it still spread to much.
Perhaps powdered sugar cut with vanilla? I'm thinking about the MMF recipe, but obviously you don't add as much.
I don't think you can.
Before MMF was developed, I used marshmallow fluff and added powdered sugar to it to make it stiff and it worked like MMF. I would think that you could add powdered sugar to it to make it a little bit stiffer.