They aren’t just for s’mores — they’re a great addition to classic baking staples such as chocolate cookies. If you turn marshmallows into marshmallow fluff, try it on a peanut butter and banana ...
Add the marshmallow creme and beat until combined. Scrape the filling into a resealable plastic bag and snip a corner. Pipe a large dollop of filling onto the flat side of half of the cookies.
Let fully cool to room temperature. In a medium bowl, add butter and mix with mixer until it looks smooth and creamy. Slowly add powdered sugar, marshmallow cream, and vanilla until well incorporated.