Spray 24 mini muffin cups with cooking spray; set aside.
Beat together butter, sugar, and brown sugar until smooth.
Add peanut butter and mix just until blended.
Add egg and vanilla and mix well.
In a medium bowl, whisk together flour, baking powder, baking soda, and salt.
Gradually add flour mixture to wet mixture, just until blended.
Roll out your cookie dough into balls. {The size of each ball will depend on how big you want your cookie cups. I did about 1-inch ones}
Place one ball into each of the 24 muffin cups.
Bake for 12-15 minutes, or until lightly golden. Unwrap Hershey's Kisses while cookies are baking.
Immediately press one pumpkin spice Hershey's Kiss into the center of each cookie cup. Allow to cool about 5 minutes, remove cookies from pan and let cool completely on rack.
Recipe by Wishes and Dishes at https://wishesndishes.com/pumpkin-spice-cookie-cups/