Peanut Butter Sandwich Cookies are chewy peanut butter cookies studded with chopped peanut butter cups, then sandwiched together with a fluffy peanut butter frosting. Pair with a cold glass of milk and enjoy!

Today begins Cookie Week, and I’m starting it with these irresistible Peanut Butter Cup Sandwich Cookies.
I adapted a chewy peanut butter cookie base, swapped chocolate chips for chopped peanut butter cups, and sandwiched the cooled cookies with a creamy peanut butter frosting. If you love peanut butter, this is a small-batch dream worth baking.