Airline Peanut Cookies

As you know, I did quite a bit of flying recently, and because of it, I ended up with a little collection of mini bags of peanuts. I would much rather eat cookies with peanuts in them than little bags of peanuts! I really don't know how a mini bag of peanuts is supposed to sustain me for a 3 hour flight, but at least airlines aren't charging for them...

Ingredients

1/2 cup(s) creamy peanut butter
4 tablespoon(s) unsalted butter room temperature
1 cup(s) packed light-brown sugar
2 large eggs
1 teaspoon(s) pure vanilla extract
1 1/2 cup(s) all-purpose flour (spooned and leveled)
1 teaspoon(s) baking powder
1/4 teaspoon(s) salt 

Instructions
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 2 inches apart on a nonstick insulated baking sheet. Press one peanut butter cup in center of each cookie. Bake until cookies are golden brown and chocolate has begun to melt, about 15 minutes more. Let cool at least 10 minutes on a baking rack.

Yields 1 1/2 dozen.