Evocative of typical lunchbox treats, they make great homemade snacking cakes.

When a dessert’s flavor is so simple, a recipe needs to get the details right.

Here’s how the details of this recipe add up to a wicked dessert.

Stack of Whoopie Pies with the Top Two Showing a Cross-Section of a Whoopie Pie

Simply Recipes / Mark Beahm

Butter is more flavorful than oil, but oil makes moister cakes than butter.

I prefer Dutch-process cocoa powder over natural cocoa powder for this recipe.

Dutch-process cocoa is darker in color and, more importantly, has a smoother, richer flavor.

Pile of Whoopie Pies on a Plate

Simply Recipes / Mark Beahm

It makes the filling for whoopie pies sweet, creamy, and slightly thicker than standard frosting.

This will give you soft and fluffy whoopie pies.

Line 2 baking sheets with parchment paper or a silicone baking mat.

Pile of Whoopie Pies on a Plate

Simply Recipes / Mark Beahm

Add the eggs, one at a time, beating well after each addition.

The mixture should be fluffy and light in color.

After each addition, mix on low speed just until combined.

Bowl of Whoopie Pie Dry Ingredients Whisked Together

Simply Recipes / Mark Beahm

Pause and scrape the bowl with a rubber spatula as needed to ensure even mixing.

The batter should be smooth and look like a thick chocolate cake batter.

Drop the batter onto the prepared baking sheets leaving about 2 inches or space between each cake.

Creamed Sugar, Butter, Eggs, and Vanilla Extract for Whoopie Pies Recipe

Simply Recipes / Mark Beahm

The tops of the cakes should look matte and spring back when gently poked.

Tip

The cakes tend to stick a bit, even to the parchment.

Remove them with care.

A Little Bit of Dry Ingredients Added to Stand Mixer Bowl with Whipped Egg and Butter for New England Whoopie Pies

Simply Recipes / Mark Beahm

A thin metal spatula is best.

While the cakes cool, make the filling.

Add the marshmallow creme and vanilla extract and continue mixing until smooth.

A Bit of Buttermilk Added to Mixer Bowl for Whoopie Pie Recipe

Simply Recipes / Mark Beahm

Scrape down the sides and bottom of the bowl and mix again for 30 seconds to combine.

The filling, while fluffy, will be slightly thicker than typical cake frosting.

When the cakes are completely cool, assemble the whoopie pies.

Whoopie Pie Batter Folded Together in Mixer Bowl Using a Spatula

Simply Recipes / Mark Beahm

Spread or scoop about 2 tablespoons of the filling on the flat side of half of the cakes.

Sandwich a second cake over the top.

Whoopie pies can also be frozen, individually wrapped in plastic wrap, for up to 3 months.

Whoopie Pie Batter Scooped onto a Lined Baking Pan Using an Ice Cream Scoop

Simply Recipes / Mark Beahm

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Scooped Batter on a Lined Baking Sheet

Simply Recipes / Mark Beahm

Baked Whoopie Pie Cakes on a Baking Pan

Simply Recipes / Mark Beahm

Whipped Whoopie Pie Filling in a Mixer Bowl

Simply Recipes / Mark Beahm

Whoopie Pies Cakes with a Dollop of Filling

Simply Recipes / Mark Beahm

Whoopie Pie Cakes Sandwiched Together to Make Whoopie Pies

Simply Recipes / Mark Beahm

Pile of Whoopie Pies on a Plate

Simply Recipes / Mark Beahm