MARSHMALLOW BUTTERCREAM cup butter room temp 1 cup Marshmallow Fluff 2 cups powdered sugar 2 Tbsp milk Mix butter and Fluff on medium speed until smooth. Slowly add powdered sugar, mix on low. Add in milk, mix on medium until smooth.
Our Top 12 Baking Tips When serving a crowd, cut a circle in the center (place a small bowl on the cake and trace around it). Then cut the outer ring into slices. You'll have nice square pieces that fit on a plate.