Delicious Whoopie Pies Recipe – Soft Cake Sandwiches with Fluffy Marshmallow Filling

Whoopie Pies Recipe

This whoopie pies recipe brings together soft, cake-like cookies with a light and fluffy marshmallow filling, creating a nostalgic dessert that’s perfect for parties, gatherings, or weekend baking. Featured on Flour Power, this recipe combines classic pantry staples with a homemade marshmallow cream for a sweet treat that’s both comforting and impressive. Whether you’re baking for family or friends, these whoopie pies are guaranteed to stand out.

The Inspiration

Whoopie pies are a beloved North American classic, often associated with comfort baking and childhood treats. Thought to have originated in Amish communities, these soft cake sandwiches have become a staple in bakeries and home kitchens alike.

On Flour Power, Jessica McGovern reintroduces this timeless dessert with a focus on technique and balance, ensuring a tender crumb and perfectly whipped marshmallow center. The recipe stays true to tradition while embracing a homemade approach that elevates both flavor and texture, making it a standout for modern bakers.

Ingredients

Whoopie pie

• ½ cup (120 ml) butter, room temperature
• 1 cup (240 ml) brown sugar
• 1 egg
• 1 teaspoon (5 ml) vanilla extract
• ¾ cup (180 ml) buttermilk
• 2 ¼ cups (530 ml) flour
• ½ teaspoon (2.5 ml) baking soda
• ½ teaspoon (2.5 ml) baking powder
• 2 tablespoons (30 ml) liquid food colouring (optional)

Marshmallow cream

• 1/8 cup (30 ml) water
• ½ cup (120 ml) icing sugar
• ½ cup (120 ml) white corn syrup
• 2 egg whites
• 1/8 teaspoon (.75 ml) salt
• ¼ teaspoon (1.25 ml) cream of tartar
• 1 teaspoon (5 ml) vanilla extract

Method

• Let’s get baking!
• Preheat oven to 375 F (190 C).
• Beat butter and sugar together in a bowl.
• Crack egg into bowl.
• Add vanilla and beat.
• Pour buttermilk into bowl and mix in.
• In a separate bowl, mix together flour, baking soda, and baking powder.
• Pour flour mixture into bowl with butter mixture and stir until combined.
• If using, add food colouring to bowl and mix in.
• Line a baking sheet with parchment paper.
• Using a piping bag, make little mounds of batter on the baking sheet.
• Bake for 11 minutes or until they spring back when touched.
• Let cool.

To make marshmallow cream

• Add water to a pan.
• Add sugar and whisk until it starts to dissolve.
• Add corn syrup.
• Cook until it reaches 240 F (115 C).
• Remove from heat and let cool slightly.
• Beat egg whites in a bowl on medium until soft peaks form.
• Add salt and cream of tartar and continue beating until stiff peaks form.
• With beaters going, slowly stream sugar mixture into egg mixture.
• Add vanilla and beat until stiff peaks form.

To assemble

• Smooth marshmallow fluff as filling on the flat side of the whoopie pies.
• Share.

Serving Suggestions

Whoopie pies are incredibly versatile and can be served in a variety of ways depending on the occasion. They are perfect for casual gatherings such as birthday parties, picnics, or family get-togethers, where their handheld nature makes them easy to enjoy without utensils.

For a cozy afternoon treat, serve them alongside coffee, tea, or hot chocolate, allowing their soft texture and sweet filling to complement warm beverages beautifully.

If you are hosting a dessert table, whoopie pies add visual charm and variety when paired with brownies, cookies, or cupcakes. They can also be lightly chilled for a firmer filling or served at room temperature for a softer, creamier bite.

For a more elevated presentation, consider dusting them lightly with icing sugar or arranging them on a decorative platter to highlight their classic sandwich shape.

Final Thoughts

This whoopie pies recipe is a celebration of classic comfort baking, combining soft, tender cake layers with a light and airy marshmallow filling that feels both nostalgic and indulgent. It captures the essence of homemade desserts while offering a slightly refined approach that enhances both texture and flavor.

Whether you’re baking for a special occasion or simply enjoying time in the kitchen, these whoopie pies deliver a satisfying and memorable result every time. On Flour Power with Jessica McGovern, recipes like this demonstrate how traditional favorites can be reimagined with care and technique, encouraging bakers to explore and enjoy the process.