Amish Peanut Butter Whoopie Pie Filling

Amish Peanut Butter Whoopie Pie Filling

from thismomcooks.com
22 min
3 servings

A soft peanut butter flavored whoopie pie filling with the best fluffy texture, perfect for various Amish whoopie pies!

Ingredients

  • 2 egg whites (pasteurized *see note below. )
  • 4 tablespoons all purpose flour (heat treated *see note below.)
  • 2 tablespoons whole milk
  • 1/3 cup softened butter
  • 2/3 cup vegetable shortening ((Crisco))
  • 3/4 cup creamy peanut butter (*see note)
  • 2 teaspoons vanilla extract
  • 2 1/2-3 cups sifted confectioner's sugar ((powdered sugar) )

Directions

  1. 1

    Beat the egg whites with a hand or stand mixer until stiff peaks form. Add the heat treated flour (*see below for tips on heat treating the flour) and milk, then mix again until smooth.

  2. 2

    Add the shortening, softened butter, peanut butter and vanilla and then mix until well combined. Add sifted confectioner's sugar (one cup at a time), mixing well after each addition. Add the last 1/2 cup of confectioner's sugar, then continue mixing on med-high speed for 10-15 minutes until the frosting is nice and fluffy and completely lump free. Note* If the frosting is too thin after 2 1/2 cups confectioner's sugar is added, you can continue with another 1/2 cup or so to get the filling to the right consistency.

  3. 3

    Place the frosting into a piping bag and pipe onto the bottom half of a whoopie pie or cookie. Top with the second whoopie pie/cookie and enjoy! Photos and notes below.