Oatmeal Peanut Butter Cookie Sandwiches

These  peanut butter sandwich cookies are delicious and reminiscent of the  the girl scout cookies, Do-si-dos. The recipe from All Recipes had many good reviews for a good reason! They are full of peanut butter flavor, but not overwhelmingly so. I definitely recommend trying them- they won't disappoint!

Oatmeal Peanut Butter Cookie Sandwiches (from AllRecipes.com)
Ingredients:
Cookies:

• 3/4 cup all-purpose flour
• 1/2 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/2 teaspoon salt
• 1/2 cup butter, softened
• 1/2 cup peanut butter
• 1/2 cup white sugar
• 1/2 cup packed light brown sugar
• 1 egg
• 1 teaspoon vanilla extract
• 1 cup quick cooking oats

PB Filling:

• 3 tablespoons butter, softened
• 1 cup confectioners' sugar
• 1/2 cup smooth peanut butter
• 2 1/2 tablespoons milk

Directions:

1. In a large bowl, cream together 1/2 cup butter, 1/2 cup peanut butter, white sugar, brown sugar, and vanilla. Add egg and beat well.
2. In another bowl, combine the flour, baking soda, baking powder, and salt. Add these dry ingredients to the creamed mixture. Stir. Add oatmeal and stir.
3. Drop by teaspoons onto greased baking sheet, and press each mound down with a fork to form 1/4 inch thick cookies. Bake at 350 degrees F (175 degrees C) for 10 minutes, or until cookies are a light brown.
4. To Make Filling: Cream 3 tablespoons butterwith the confectioners' sugar, 1/2 cup smooth peanut butter, and the milk. Spread filling onto half of the cooled cookies, then top with the other half to form sandwiches.