Marshmallow Cake Filling
A dreamy and fluffy marshmallow cake filling that transforms any cake or cupcake into a heavenly delight.
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Total Time: 15 minutes
- Yield: Fills 2-layer cake or 12 cupcakes 1x
- Category: Dessert
- Method: Mixing
- Cuisine: American
- Diet: Vegetarian
Ingredients
Scale
- 1 cup marshmallow fluff
- 1/2 cup unsalted butter, softened
- 1 cup powdered sugar
- 1 teaspoon vanilla extract
- 1–2 tablespoons heavy cream (optional, for consistency)
Instructions
- Creaming together the softened butter and marshmallow fluff until smooth.
- Gradually add the powdered sugar, mixing on low speed until combined.
- Stir in the vanilla extract to enhance the flavor.
- If the filling is too thick, add heavy cream one tablespoon at a time until desired consistency is reached.
- Use the filling immediately or store in the refrigerator until needed.
Notes
Leftover filling can be stored in an airtight container in the refrigerator for up to one week. Whip before using if refrigerated.
Nutrition
- Serving Size: 1 serving
- Calories: 150
- Sugar: 22g
- Sodium: 50mg
- Fat: 7g
- Saturated Fat: 4g
- Unsaturated Fat: 2g
- Trans Fat: 0g
- Carbohydrates: 23g
- Fiber: 0g
- Protein: 1g
- Cholesterol: 15mg
Find it online: https://ameliasweets.com/2026/06/09/marshmallow-cake-filling/