- 1 (13 oz) jar marshmallow fluff
- 3 tbsp sour cream
- 1 tsp pure vanilla extract
- Remove the lid from the jar of marshmallow fluff. Microwave on high for about 45 seconds. Scrape the fluff out of the jar and into a mixing bowl.
- Add sour cream and vanilla extract.
- Using an electric or stand mixer, beat on medium speed about 1 minute, or until the frosting is fluffy.