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Cake Mix Whoopie Pies

Cake Mix Whoopie Pies

Cake Mix Whoopie Pies have soft, pillowy cookies surrounding a smooth and creamy buttercream. They're perfect for birthday parties, bake sales and everyday baking!
Prep Time 20 mins
Cook Time 13 mins
Course Dessert
Servings 18 Whoopie Pies


  • 1 15.25 oz box cake mix
  • 1 3.4 oz box instant pudding mix
  • c water
  • ½ c vegetable oil
  • 3 eggs


  • ¾ c salted butter (1 ½ sticks), softened
  • 3 c powdered sugar
  • 1 teaspoon vanilla extract
  • 1 c marshmallow creme


Make the Cookies

  • Preheat oven to 350°F. Line baking sheets with parchment paper or silicone baking mats.
  • In a large bowl (or the bowl of a stand mixer), add the cake mix, pudding mix, water, oil and eggs.
  • Stir to combine then use a rubber spatula to get the ingredients off the sides of the bowl. Then beat for 2 minutes.
  • Scoop the batter onto the prepared baking sheet, making sure to put at least 2 inches between each cookie (I use a 2 tablespoon cookie scoop).
  • Bake for 10-13 minutes. Let cool completely.

Make the Filling

  • Place the softened butter in the bowl of a stand mixer. Beat until smooth.
  • Add the powdered sugar and vanilla and beat until smooth.
  • Stir in the marshmallow creme and refrigerate until you're ready to assemble the whoopie pies.

Assemble & Enjoy!

  • Lay half of the cookies upside-down (so the flat side of the cookie is on top).
  • Use a piping bag or a cookie scoop to transfer the filling onto the cookie halves.
  • Place the remaining cookies on top to form the whoopie pies.
Keyword Whoopie Pies
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