Beat together the marshmallow fluff and butter until light and fluffy.
Add powdered sugar and vanilla and enough heavy whipping cream to make it a smooth frosting that can be piped
Beat until light and fluffy.
Fold in finely crushed Oreos.
Pipe onto the cooled cupcakes (I used a jumbo round tip) and garnish with additional Oreos as desired.
Marshmallow fluff takes this decadent Oreo Frosting to the next level with an added layer of flavor. It's a fan favorite!!