Patriotic Whoopie Pies for July (Printer-friendly)

Chocolate cake rounds filled with marshmallow buttercream, tinted red and blue, finished with patriotic sprinkles.

# What You’ll Need:

→ Whoopie Pie Cakes

01 - 2 cups all-purpose flour
02 - 1/2 cup unsweetened cocoa powder
03 - 1 teaspoon baking soda
04 - 1/2 teaspoon salt
05 - 1 cup granulated sugar
06 - 1/2 cup unsalted butter, softened
07 - 1 large egg
08 - 1 cup buttermilk
09 - 1 teaspoon vanilla extract

→ Filling

10 - 1/2 cup unsalted butter, softened
11 - 1 1/2 cups powdered sugar
12 - 7 ounces marshmallow creme
13 - 1 teaspoon vanilla extract
14 - Pinch of salt

→ Decoration

15 - Red food coloring
16 - Blue food coloring
17 - Patriotic sprinkles, red, white, and blue

# How-To Guide:

01 - Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, cocoa powder, baking soda, and salt.
03 - In a large bowl, beat unsalted butter and granulated sugar until light and fluffy. Incorporate egg and mix thoroughly.
04 - Add buttermilk and vanilla extract to the creamed mixture. Gradually incorporate dry ingredients until a smooth batter forms.
05 - Drop 24 equal rounds of batter onto prepared baking sheets, spacing 2 inches apart.
06 - Bake 10–12 minutes or until cakes are set and lightly spring back when touched. Transfer to a cooling rack and allow to cool completely.
07 - In a clean bowl, beat unsalted butter until creamy. Add powdered sugar, marshmallow creme, vanilla extract, and a pinch of salt. Whip mixture until airy and light.
08 - Divide filling evenly among three bowls. Leave one uncolored, tint one with red food coloring, and tint the last with blue food coloring.
09 - Pipe or spoon filling onto the flat side of half the cakes. Top with remaining cakes to form sandwiches.
10 - Roll filled edges in patriotic sprinkles or pipe colored frosting on top as desired for celebratory presentation.

# Expert Advice:

01 -
  • The frosting colors and sprinkle edges make everyone at the table light up with giddy delight.
  • Even kitchen newbies can bake these with confidence, and the results feel bakery-special.
02 -
  • If the cakes are even a little warm when you add filling, you’ll end up with a drippy mess.
  • Gel food coloring delivers bold color with just a toothpick dip—liquids make the filling runny.
03 -
  • Don’t overmix the cake batter; gentle folding keeps each pie tender and airy.
  • A quick flash in the fridge helps the frosting hold its shape even if your kitchen is hot.