Classic Whoopie Pie

Ingredients

All-purpose flour

1 3/4 cups

Cocoa powder

1/2 cup

Baking soda

1 teaspoon

Salt

1/4 teaspoon

Unsalted butter

1/2 cup, softened

Granulated sugar

1 cup

Egg

1 large

Vanilla extract

1 teaspoon

Buttermilk

1/2 cup

Powdered sugar

2 cups

Marshmallow fluff

1 cup

Instructions

1. Preheat the oven to 375°F (190°C) and line two baking sheets with parchment paper.
2. In a medium bowl, whisk together the flour, cocoa powder, baking soda, and salt until combined.
3. In a large bowl, beat the softened butter and granulated sugar together using an electric mixer until light and fluffy, about 3-4 minutes.
4. Add the egg and vanilla extract to the butter mixture, beating until well combined.
5. Gradually add the dry ingredients to the wet mixture, alternating with the buttermilk, starting and ending with the dry ingredients. Mix until just combined; do not overmix.
6. Using a cookie scoop or rounded tablespoons, drop the dough onto the prepared baking sheets, spacing them about 2 inches apart.
7. Bake for 10 minutes, or until the cookies spring back when lightly touched. Remove from the oven and allow to cool completely on a wire rack.
8. To prepare the filling, in a medium bowl, beat together the marshmallow fluff and powdered sugar until smooth and creamy.
9. Spread the filling onto the flat side of half of the cookies. Top with the remaining cookies, flat side down, to create sandwiches.
10. Serve immediately or store in an airtight container for up to 3 days.