Peanut Butter Sandwich Cookies

I thought these were AWESOME!
Found in my Taste of Home Baking Book
Recipe is by Debbie Kokes

1 c. butter-flavored shortening
1 c. creamy peanut butter
1 c. sugar
1 c. packed brown sugar
3 eggs
1 t. vanilla extract
3 c. all-purpose flour
2 t. baking soda
1/4 t. salt

FILLING:
1/2 c. creamy peanut butter
3 c. confectioners' sugar
1 t. vanilla extract
5 to 6 T. milk

1. In a large mixing bowl, cream the shortening, peanut butter and sugars until light and fluffy. Add eggs, one at a time, beating well after each addition. Beat in vanilla. Combine the flour, baking soda and salt; gradually add to the creamed mixture.

2. Shape into 1-in. balls. Place 2 in. apart on ungreased baking sheets. Flatten to 3/8-in. thickness with a fork. Bake at 375 for 7-8 minutes or until golden. Remove to wire racks to cool completely.

3. In a mixing bowl, combine filling ingredients; beat until smooth. Spread on the bottom of half of the cookies; top with remaining cookies.

Yield: 4 dozen