These festive red, white, and blue whoopie pies feature soft cake-like cookies filled with a fluffy vanilla buttercream filling. Perfect for summer celebrations, they are colorful, creamy, and easy to share at parties and cookouts.
3 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon baking powder
1/2 teaspoon salt
1 cup unsalted butter, softened
1 1/2 cups granulated sugar
2 large eggs
1 tablespoon vanilla extract
1 cup buttermilk
Red gel food coloring
Blue gel food coloring
1 cup unsalted butter, softened (for filling)
4 cups powdered sugar
2 tablespoons heavy cream
1 tablespoon vanilla extract (for filling)
Pinch of salt
Add patriotic sprinkles around the filling edges for extra decoration.
Marshmallow fluff can be added to the filling for a classic whoopie pie texture.
Store in an airtight container in the refrigerator for up to 4 days.
Place parchment paper between layers to prevent sticking.
Let sit at room temperature for 15 minutes before serving for the best texture.
Freeze for up to 2 months and thaw overnight in the refrigerator.
Gel food coloring works best because it keeps the batter thick while creating vibrant colors.