Peanut Butter Surprise Cookies :)

i got this recipe off my friend {ashley's} blog a while ago and they are sooooo yummy!!

ingredients:

1/2 cup creamy peanut butter
4 tablespoons unsalted butter, room temperature
1 cup packed light-brown sugar
2 large eggs
1 teaspoon pure vanilla extract
1 1/2 cups all-purpose flour (spooned and leveled)
1 teaspoon baking powder
1/4 teaspoon salt
1/3 cup granulated sugar, for rolling dough
36 mini peanut butter cups, chilled and unwrapped

directions:

preheat oven to 350 degrees. using an electric mixer, cream peanut butter and butter in a mixing bowl until smooth. add brown sugar; beat until combined, scraping down bowl as needed. add eggs and vanilla, and beat until incorporated. in a small bowl, whisk together flour, baking powder, and salt. with mixer on low speed, gradually beat in flour mixture in two batches. scoop off dough by the tablespoon; roll into balls. place granulated sugar on a plate; roll balls in sugar, coating completely. place 2 inches apart on a nonstick insulated baking sheet. bake until cookies begin to puff up slightly, about 7 minutes. remove from oven. press one peanut butter cup in center of each cookie. return to oven; continue baking until cookies are golden brown and chocolate has begun to melt, about 6 minutes more. let cool at least 10 minutes on baking sheet before transferring cookies to rack to cool completely. makes around 36 cookies.