Step 1: Preheat and Prep

Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper. This prevents sticking and ensures evenly baked pies.

Step 2: Sift and Combine Dry Ingredients

In a large bowl, sift together flour, cocoa powder, baking soda, and salt. Mix gently and set aside.

Step 3: Cream Butter and Sugar

In another bowl, beat the softened butter and brown sugar together using a mixer until fluffy (about 2–3 minutes). Add in the egg and vanilla extract, and beat again until well combined.

Step 4: Mix the Wet and Dry Ingredients

Gradually add the dry ingredients to the butter mixture, alternating with buttermilk. Add red food coloring and mix just until the batter turns vibrant red. Avoid overmixing.

Step 5: Bake the Cake Rounds

Using a small cookie scoop or tablespoon, place even rounds of batter on the baking sheets, spacing them 2 inches apart. Bake for 10–12 minutes or until the cakes spring back when touched. Let them cool completely before assembling.

Step 6: Make the Cream Cheese Filling

Beat butter and cream cheese until smooth. Add powdered sugar one cup at a time, then vanilla and salt. Beat until light, fluffy, and smooth.

Step 7: Assemble the Whoopie Pies

Once the cake rounds are cool, pipe or spoon the cream cheese filling onto the flat side of one round. Top with another round to create a sandwich. Press gently.