Cream butter with brown and white sugar. Next, add egg, creamy peanut butter, and vanilla. Mix everything together in a mixing bowl.

In a separate bowl, add the dry ingredients and sift together. Then, add this mixture into your butter mixture.

Once the dough is all mixed together, squeeze them into a muffin tin. With your thumb, press a hole in the center of each cup.

Place the muffin tin in a 350° preheated oven and bake it for about 8-10 minutes. Once done, let cool for a few minutes then press in mini peanut butter cups