Cake Batter Rice Krispie Cupcakes with Marshmallow Buttercream

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Cake Batter Rice Krispie Cupcakes 
Marshmallow Buttercream
When I found the recipe for these on Pinterest, I knew I HAD to try them!!
I mean, who doesn’t like rice krispy bars?!
Add cake batter?? Whoa Baby!!
I found the recipe on Baked from a Box
I added my Marshmallow Buttercream Frosting, and YUMM-O!!


What kid (or adult?) wouldn’t want one?!


Cake Batter Rice Krispie Cupcakes with Marshmallow Buttercream
Make up a batch of my Marshamallow Buttercream (recipe found HERE)
Frost “cupcakes” and top with more sprinkles!!
Close up of rice krispie cupcakes
5 from 4 votes
Print Recipe

Cake Batter Rice Krispie Cupcakes with Marshmallow Buttercream

Rice Krispie bars with cake batter and Marshmallow butter cream!
Prep Time10 minutes
Cook Time3 minutes
Additional Time30 minutes
Total Time43 minutes
Course: Cake & Cupcakes
Cuisine: American
Keyword: Cake Batter Rice Krispie Cupcakes with Marshmallow Buttercream
Servings: 12 cupcakes
Calories: 329kcal
Author: Baked from a box/ Michaela Kenkel


  • 3/4 stick of butter
  • 3/4 cup yellow cake mix
  • 1/2 tsp vanilla
  • 3 cups Rice Krispie Cereal
  • 1/2 10 oz bag of mini marshmallows
  • 1 Tbls sprinkles
  • Frosting:
  • 1 1/2 cups marshmallow creme
  • 3/4 cup butter softened
  • 1 1/4 cups powdered sugar


  • Melt butter in the microwave for about 45 seconds. Mix in marshamallows and return to microwave for about 30 seconds. Stir and continue melting until well combined. Don’t overcook!!
  • Mix in cake mix and vanilla until combined. Add sprinkles and rice Krispies.
  • Stir until well combined.
  • Either line mini muffin tines with liners or grease well.
  • Press cereal mixture into liners and press down with a spoon.
  • Cool for 30 minutes in the refrigerator.

Marshmallow Frosting:

  • In large bowl, beat marshmallow creme and butter with electric mixer on medium speed until blended. Beat in powdered sugar until fluffy.


Serving: 1g | Calories: 329kcal | Carbohydrates: 43g | Protein: 1g | Fat: 18g | Saturated Fat: 11g | Polyunsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 46mg | Sodium: 247mg | Sugar: 29g

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