How to Make Red Velvet Whoopie Pies with Blueberries - Best Red Velvet Whoopie Pies

Ingredients

• 2 c. all-purpose flour
• 1 tsp. baking powder
• 3/4 tsp. kosher salt
• 1/2 tsp. baking soda
• 1/2 c. (1 stick) butter, softened at room temperature
• 1 c. granulated sugar
• 2 large eggs
• 1/4 c. unsweetened cocoa powder, sifted
• 1 tbsp. red food coloring
• 1/2 c. whole-fat buttermilk
• 1 tbsp. distilled white vinegar
• 1 tsp. vanilla
• 8 oz. cream cheese, cold
• 1 1/2 c. powdered sugar, plus more for dusting
• 1/2 tsp. vanilla extract
• 1/4 tsp. kosher salt
• 1 1/2 c. heavy whipping cream
• 1/2 c. chopped toasted pecans
• 1 pt. fresh blueberries