Peanut Butter Sandwich Cookies

In my opinion, you simply can't go wrong with a peanut butter cookie. This particular cookie is basically 2 peanut butter cookies with a creamy peanut butter filling in the middle--pure cookie deliciousness! I know it sounds like it could possibly PB overload, but I'm sure that if you like peanut butter cookies, you will like this one too!

1/2 cup unsalted butter, room temperature
3/4 cup creamy peanut butter
1/2 cup light brown sugar
1/2 cup granulated white sugar
1 large egg
1 teaspoon vanilla extract
1 cup all-purpose flour
1/2 teaspoon baking soda
1/4 teaspoon salt

For PB filling:
6 oz. cream cheese, room temperature
1/2 cup creamy peanut butter
1/4 teaspoon vanilla extract
1/3 cup confectioners sugar

Preheat oven to 350 and place rack in the center of the oven. Line 2 baking sheets with parchment paper.
For the cookies: In the bowl of your electric mixer, cream butter, peanut butter, and sugars until light and fluffy, about 2-3 minutes. Add egg and vanilla and beat to combine. In a separate bowl, whisk together the flour, baking soda and salt. Add to the peanut butter mixture and beat until incorporated. Put 1 tablespoon of dough on cookie sheet, leaving about 2 inches between mounds of dough. Press the dough flat with the back of a fork that has been dipped in granulated sugar. Bake the cookies for 10-12 minutes or until the cookies are lightly browned around the edges. Cool completely on a wire rack.
For the filling: In the bowl of your electric mixer, beat the softened cream cheese, peanut butter, vanilla and sugar until smooth.
To assemble: Take 1 cookie, spread about 1 tablespoon of the filling on the flat side, then top with another cookie, flat side down, to make a sandwich. If not serving right away, cover and store in the fridge. Bring to room temperature before serving. Makes about 18 sandwich cookies.