- 1 box red velvet cake mix
- Ingredients listed on the box (substitute buttermilk for the water)
- 1 cup Nutella
Marshmallow Fluff Frosting
- 1 cup (2 sticks) salted butter, softened
- 1 jar (7 oz) marshmallow fluff
- 2 cups powdered sugar
- 1 tsp vanilla extract
- Heavy cream (optional, as needed for consistency)
Topping
- Heart-shaped marshmallows