Instructions

1. Preheat oven to 350º degrees (F). Prepare the cookie sheet with parchment paper, a silicone mat or spray the pan with non-stick spray.

2. Chop candy into small pieces.

3. In a stand mixer use the paddle attachment  Cream together the butter, peanut butter and brown sugar until light and fluffy, about 2-3 minutes.

4. Add in the egg on low speed.

5. In a separate bowl, sift together flour, baking soda, cornstarch, baking powder, and salt. 

6. Slowly add the flour mixture to the wet ingredients and mix until just combined.
7. Stir in the oats and all candies by hand.

8. Using a cookie scoop (2-3 tablespoons), scoop out cookie dough into balls. Place on baking sheet. I placed 12 on each sheet. 

9. Bake the cookies for 8-10 minutes until the edges are just starting to brown and the top still looks slightly undercooked.
10. Remove from the oven and cool for 5 minutes on the baking sheet before moving them to a wire rack to cool completely.