Chocolate Whoopie Pies With Vanilla Buttercream Filling Recipes

Steps:

• Line 2 baking sheets with parchment and lightly coat with cooking spray.
• Whisk together the flour, baking soda, baking powder and salt in a medium bowl. Beat together the granulated sugar, butter and vanilla in a large bowl with an electric mixer on medium-high speed until light and fluffy. Add the egg and beat until combined. Reduce the speed to low and add the flour mixture in 3 batches, alternating with the buttermilk in 2 batches, beating after each addition until just combined.
• Scoop 2-tablespoon mounds of batter onto the baking sheets about 2-inches apart. Moisten your fingers and gently form each mound into a round and slightly smooth the top. Refrigerate until firm, about 30 minutes.
• Preheat the oven to 400 degrees F.
• Bake the cookies, rotating the trays halfway through, until the tops bounce back when gently touched, 10 to 12 minutes. Cool on the baking sheets 5 minutes, then transfer to a rack to cool completely.
• Put the confectioners' sugar and butter in the bowl of an electric mixer fitted with the paddle attachment and beat on low speed until just incorporated, about 1 minute. Increase the mixer speed to medium and beat until smooth and fully incorporated. Turn the mixer off and scrape down the sides of the bowl. Add the dissolved cocoa powder and vanilla extract. Turn the mixer back on to medium speed and beat until everything is well mixed, 1 to 2 minutes. With the mixer off, add the milk. Mix together on low speed until just incorporated.
• To assemble the whoopie pies: Flip half of the cookies over and spread the bottoms with the filling. Top each with another cookie--bottom facing in--to make a sandwich.
• Put the sprinkles on a plate and roll the edge of each whoopie pie in the sprinkles to coat.
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Steps:

• For the cookies: Line 2 baking sheets with parchment paper and lightly coat with cooking spray.
• Whisk together the flour, baking soda, baking powder and salt in a medium bowl. Beat together the granulated sugar, butter and vanilla in a large bowl with an electric mixer on medium-high speed until light and fluffy. Add the egg and beat until combined. Reduce the speed to low and add the flour mixture in 3 batches, alternating with the buttermilk in 2 batches, beating after each addition until just combined.
• Scoop 2-tablespoon mounds of batter onto the baking sheets about 2 inches apart. Moisten your fingers and gently form each mound into a round and slightly smooth the top. Refrigerate until firm, about 30 minutes.
• Preheat the oven to 400 degrees F.
• Bake, rotating the trays halfway through, until the tops of the cookies bounce back when gently touched, 10 to 12 minutes. Cool on the baking sheets 5 minutes, then transfer to a rack to cool completely.
• For the marshmallow filling: Put the salt and egg whites in the bowl of an electric mixer fitted with the whisk attachment. Beat on medium speed until foamy. On high speed, gradually add 1/4 cup of the granulated sugar and beat until stiff and shiny.
• Meanwhile, combine the corn syrup, 1/2 cup water and the remaining 3/4 cup sugar in a medium saucepan and bring to a boil over medium-high heat. Cook until the mixture reaches the firm-ball stage, about 245 degrees F on a candy thermometer.
• Turn on the mixer to medium speed. Slowly pour the hot syrup into the egg whites, then beat on high until the mixture is thick, fluffy and cool, 5 to 7 minutes. Beat in the vanilla. Let cool completely.
• To assemble the whoopie pies, flip half of the cookies over on a work surface and spread them with the filling. Top each with another cookie, bottom facing in, to make a sandwich.

Steps:

• In a large bowl, combine the cake mix, eggs, oil and vanilla; beat on low speed for 30 seconds. Beat on medium for 2 minutes (mixture will be sticky)., Drop by 2 tablespoonfuls 2 in. apart onto greased baking sheets. Bake at 350° for 9-11 minutes or until edges are set. Cool for 2 minutes before removing to wire racks to cool completely., For filling, in a small saucepan, combine the sugar, flour and salt. Gradually add milk. Bring to a boil; cook and stir for 1-2 minutes or until thickened. Stir in chocolate chips until melted. Transfer to a small bowl; cover and refrigerate until chilled, about 1 hour., In a large bowl, beat the shortening and butter until fluffy. Beat in chocolate mixture and vanilla., Spread chocolate filling on the bottoms of half of the cookies, about 2 tablespoons on each; top with remaining cookies. Roll sides in miniature chocolate chips for garnish. Store in the refrigerator.