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Easy Whoopie Pies

These super simple chocolate whoopie pies start with a boxed cake mix and are filled with a delicious homemade marshmallow fluff filling!

A DELICIOUSLY EASY HANDHELD DESSERT

I’m going to give y’all the cheaters version to making whoopie pies (if you don’t already make them this way yourself). Making baked goods totally from scratch is always wonderful if you have time, but honestly, making whoopie pies can be a bit tedious!. So I’ve tried to make this recipe easy to follow and to use tips to create perfect whoopie pies!

a chocolate whoopie pie with a bite removed is sitting on a wooden cutting board.

FREQUENTLY ASKED QUESTIONS:

What are Whoopie Pies?

They are basically individual handheld cake sandwiches with a cream filling. They are usually chocolate but you can find them in other flavors.

What is Whoopie Pie filling made of?

There are several ways to make the filling. Some use a shortening base filling which is the more traditional way. Others use a marshmallow based filling (like the one I am sharing here).

Could I make this with different cake mixes?

I don’t see why not. I have only ever made these using the chocolate so I can’t tell you the tastes, etc. of other cake mix flavors and pudding combinations but this is a fairly simple recipe to customize. It will have to be something you experiment with. If you try other flavors, please let me know how it turns out for you!

How do I store leftovers?

Leftover whoopie pies should be individually wrapped in plastic wrap and stored in the refrigerator for up to 3 days. They can also be frozen. Individually wrap each whoopie pie in plastic wrap. Then wrap again in aluminum foil (to prevent freezer burn). They can be stored in the freezer for up to 3 months.

A stack of chocolate whoopie pies shown on a round white plate.

INGREDIENTS NEEDED: (SEE RECIPE CARD BELOW FOR THE FULL RECIPE)

  • chocolate cake mix – use your favorite cake mix brand. I love Duncan Hines but any cake mix will work here.
  • instant chocolate pudding – this actually helps to “stiffen up” the cake mix to make it a bit more thick and easier to hold together.
  • eggs, oil and water – you are not using the amounts on the back of the box. You will use the amounts I give instead of(in the recipe card at the end of the post).
  • salted butter – it needs to be real butter and not margarine. Margarine is mostly oil and it doesn’t hold up well in this filling.
  • confectioner’s (powdered) sugar
  • vanilla extract
  • marshmallow fluff – you could also use marshmallow creme (whichever one you can find).
chocolate cake mix, instant chocolate pudding, eggs, eater, vegetable oil, butter, powdered sugar, vanilla extract and marshmallow fluff.

HOW TO MAKE EASY CHOCOLATE WHOOPIE PIES:

Heat oven to 350°F. Line two large cookie sheets with parchment paper a silpat, or lightly spray with nonstick cooking spray. In a large bowl, beat together chocolate cake mix, instant chocolate pudding mix, eggs, water and vegetable oil until thoroughly combined.

cake mix, pudding mix, eggs, oil and water in a large clear bowl

Pour batter into a 1 gallon ziploc bag and seal. Cut a small hole off of one of the bottom corners.

whoopie pie batter in a clear ziploc gab with one corner that has been cut off.

Pipe batter into 36 small circles onto cookie sheets about 1-inch apart (this will allow for spreading).

chocolate batter balls on a baking sheet that has been lined with parchment paper.

Bake 10 to 12 minutes until set. Cool 2 minutes; remove from cookie sheets and place on cooling rack. Cool completely before filling.

fully baked tops and bottoms of chocolate cake batter on a baking sheet.

To make the filling:  With electric mixer on medium speed, beat butter and sugar together until fluffy, about 2 minutes then beat in vanilla extract. Beat in marshmallow fluff until incorporated. Refrigerate filling until slightly firm, about 30 minutes.

powdered sugar, butter, vanilla extract and marshmallow fluff in a large clear bowl being mixed together.

Once cookies are cooled, spread filling (about 2 tablespoons – you want a thick filling) on flat side of one cookie.

a hand holding half of the soft cookie that has had marshmallow filling spread on top.

Top with the second cookie, flat side down to make a sandwich. Whoopie pies can be refrigerated in airtight container for up to 3 days.

two hands holding a whoopie pie showing how to assemble the cookie.

Cook’s Tip: Marshmallow fluff can be a bit sticky to work with. Spray your measuring cups with nonstick spray to help it come out easier. Also, when you are spooning the filling onto the cakes, do the same thing. Just spray your spoon with nonstick spray and it will slide right out.

a stack of whoopie pies on a round white plate with marshmallows and pieces of chocolate in the background.

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Easy Whoopie Pie recipe

Easy Whoopie Pies

These super simple chocolate whoopie pies start with a boxed cake mix and are filled with a delicious homemade marshmallow fluff filling!
26 Reviews
Print Pin Rate
Prep Time: 35 minutes
Cook Time: 12 minutes
Total Time: 47 minutes
Servings: 12

Ingredients

For the cakes:

  • 1 box devil's food cake mix (see notes below)
  • 3.9 ounce box instant chocolate pudding mix
  • 3 large eggs
  • ¾ cup water
  • ½ cup vegetable oil

For the filling:

  • 12 Tablespoons (1 1/2 sticks) salted butter, room temperature
  • cup powdered sugar
  • teaspoons vanilla extract
  • cups marshmallow fluff

Instructions

  • Heat oven to 350°F. Line two large cookie sheets with either parchment paper, Silpat, or lightly spray with nonstick cooking spray.
  • In large bowl, beat together 1 box devil's food cake mix, 3.9 ounce box instant chocolate pudding mix, 3 large eggs, 3/4 cup water and 1/2 cup vegetable oil until thoroughly combined (batter will be thick).
    cake mix, pudding mix, eggs oil and water combined in a bowl.
  • Pour batter into a 1 gallon ziploc bag and seal. Cut a hole off of one of the bottom corners.
    whoopie pie batter in a clear ziploc gab with one corner that has been cut off.
  • Pipe batter into 36 small circles onto cookie sheets about 1-inch apart (this will allow for spreading).
    chocolate batter balls on a baking sheet that has been lined with parchment paper.
  • Bake 10 to 12 minutes until set. Cool 2 minutes; remove from cookie sheets and place on cooling rack. Cool completely before filling.
    fully baked whoopie pie tops and bottoms on a baking sheet.

For the filling:

  • With electric mixer on medium speed, in a medium-sized bowl, beat 12 Tablespoons (1 1/2 sticks) salted butter, room temperature and 1¼ cup powdered sugar until fluffy then beat in 1½ teaspoons vanilla extract.
    butter and powdered sugar in a bowl.
  • Beat in 2½ cups marshmallow fluff until incorporated. Cover bowl with plastic wrap and refrigerate filling until slightly firm, about 30 minutes.
    powdered sugar, butter, vanilla extract and marshmallow fluff in a large clear bowl being mixed together.

To assemble:

  • Once cookies are cooled, spread filling (about 2 Tablespoons – you want a thick filling so use your best judgement) on flat side of one cookie. Top with the second cookie, flat side down to make a sandwich.
    a hand holding half of a whoopie pie that has had marshmallow filling spread on top.
  • Then enjoy! If not eating immediately, I suggest wrapping each one individually in plastic wrap and storing in the refrigerator for up to 3 days.
    two hands holding a whoopie pie showing how to assemble the cookie.

Video

Youtube video

Notes

  • Marshmallow fluff can be a bit sticky to work with. Spray your measuring cups with nonstick spray to help it come out easier. Also, when you are spooning the filling onto the cakes, do the same thing. Just spray your spoon with nonstick spray and it will slide right out.
  • I recommend going with a brand that has the largest ounces. As of the time of writing this, Duncan Hines and Pillsbury are 15.25 ounce boxes and Betty Crocker is only 13.25 ounces. The larger size boxes are recommended for this recipe.
.
Course: Dessert
Cuisine: American

Nutrition

Calories: 402kcal | Carbohydrates: 61g | Protein: 4g | Fat: 18g | Sodium: 339mg | Fiber: 1g | Sugar: 42g

Nutritional Disclaimer

“The Country Cook” is not a dietician or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.

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Originally published: March 2011
Updated and republished: April 2022

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