Step 1

Preheat the oven to 325F and line a baking sheet with parchement paper then set aside.

Step 2

In a large mixing bowl or a stand mixer bowl, cream the cold butter, granulated sugar, and brown sugar together until light and creamy.

Step 3

Add in the egg, and vanilla extract, and mix until combined.

Step 4

Sift in the flour, baking soda, and salt and mix just until the flour mixture disappears. Add in the M&M's, peanut butter chips, and chocolate chips and gently fold.

Step 5

Using a large cookie scooper, scoop out 8 equally sized cookie dough balls, place them on a baking sheet, and gently press down to about 1 inch in thickness. Bake in the preheated oven for 12-13 minutes.

Step 6

As soon as you pull out the cookies from the oven, top with a few extra chocolate chips, Peanut butter chips, and M&M's, and let the cookie rest on the baking sheet for 20 minutes or until fully cooled down to set before enjoying them.