Simply Delicious Amish Cooking by Sherry Gore: http://zndr.vn/10z2eX5

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Recipe: Chocolate Whoopie Pies

1½ cups shortening

3 cups sugar

3 egg yolks, beaten

3 teaspoons vanilla

1½ cups buttermilk

(or sour milk)

3 teaspoons baking soda

2 teaspoons salt

1½ cups hot water

1½ cups cocoa

6 cups flour

Preheat oven at 350˚. Cream together shortening and sugar. Add egg yolks and vanilla. Stir in buttermilk. Add baking soda, salt, hot water, cocoa, and flour. Beat well. Drop by table spoon onto greased cookie sheet and bake 12 minutes. Makes approximately 40 whoopie pies.

Filling

1½ cups white shortening

(not butter flavored)

5 tablespoons milk

3 cups powdered sugar

3 teaspoons vanilla

3 egg whites, beaten stiff

Cream shortening and milk. Add powdered sugar and vanilla; mix well. Beat in egg whites until filling is fluffy. To assemble pies, spread a heaping spoonful of filling on flat side of half the cookies. Top with remaining cookies.