This is an oldie but goodie recipe from my Grandma's old recipe box. The card is covered with lots of splotches, so you know it's a good one that was used a lot.
It's peanut butter cookie dough in mini muffin cups, filled with a mini peanut butter cup. I used to love these, and now my own kids do.
Peanut Butter Temptations
1/2 cup butter
1/2 cup peanut butter
1/2 cup white sugar
1/2 cup packed brown sugar
1 egg
1/2 teaspoon vanilla extract
1 1/4 cups all-purpose flour
3/4 teaspoon baking soda
1/2 teaspoon salt
36 miniature peanut butter cup candies, unwrapped
Mini muffin cup liners, optional
Preheat oven to 375 degrees F.
In a medium bowl, cream together the butter and peanut butter. Add the white sugar and brown sugar and mix well. Add the egg and vanilla and mix. Sift together the flour, baking soda and salt. Stir into the peanut butter mixture until the dough comes together. Shape into 1 inch balls and put in the cups of an ungreased (or paper-lined) mini muffin pan. (I just use a small cookie scoop and drop them into the cups.)
Bake for 8 to 10 minutes. As soon as the cookies come out of the oven, press a mini chocolate covered peanut butter cup down into the center of each cookie until only the top is showing. Let cool 10 minutes, then remove from pans. Store in airtight container.