Chocolate Peanut Butter Cream Sandwiches - Recipes | Go Bold With Butter

Ingredients

• 1 3/4 cups all-purpose flour
• 3/4 cup black cocoa powder
• 1 teaspoon baking powder
• 1 cup (2 sticks) unsalted butter, melted
• 1 tablespoon dry milk powder
• 1 tablespoon vanilla
• 1/2 teaspoon instant espresso powder
• 1/2 teaspoon fine sea salt
• 1 3/4 cup dark brown sugar, packed
• 1 egg plus 1 egg yolk
• 1/2 cup (1 stick) unsalted butter, softened
• 1/2 cup creamy peanut butter
• 2 cups powdered sugar, sifted
• 2 to 3 teaspoons milk
• 1 teaspoon vanilla
• 1/4 teaspoon fine sea salt