Step 1

Preheat the oven to 350 degrees Fahrenheit.

Step 2

In a mixing bowl, whisk together the flour, cornstarch, baking soda and salt.

Step 3

In a separate bowl, cream together the butter and both of the sugars with a hand held mixer or stand up mixer until light and fluffy. Add in egg and vanilla extract and combine.

Step 4

Mix in the peanut butter until combined.

Step 5

Turn the mixer speed to low and gradually add in the flour mixture until the dough is just combined.  Be careful not to over mix.

Step 6

Gently fold in 1 cup of the Reese’s pieces.

Step 7

Then drop the cookie dough onto baking sheets in approximately 1 ½  tablespoon amounts.

Step 8

Place the remaining Reese’s pieces candies on top of the cookies.

Step 9

Bake for 10-12 minutes until the cookies are just starting to brown around the edges of the cookies.

Step 10

Cool on the baking sheet for 5 minutes and then move the cookies to a wire rack to cool completely.

Step 11

Then the cookies are ready to enjoy!