Step 1

Preheat your oven to 350

Step 2

Line a baking sheet with parchment and then butter the parchment and sides of the pan.

Step 3

In the bowl of an electric stand mixer add the butter and sugars.

Step 4

Mix with a paddle attachment until well

Step 5

blended and light and fluffy.

Step 6

Add in vanilla and eggs, continue mixing until well incorporated.

Step 7

In a separate bowl combine flour, baking powder, baking soda, and salt, whisk until well incorporated.

Step 8

Add dry ingredients gradually into the mixer, mixing after each addition.

Step 9

Add in chocolate chips and one cup of the M&M’s fold in until evenly mixed.

Step 10

Spread the dough evenly into your prepared pan.

Step 11

Sprinkle 1 cup of M&M’s across the top of the cookie dough.

Step 12

Bake for 20-25 minutes or until golden brown.

Step 13

Allow to cool completely before cutting into 24 squares.

Step 14

Store in an airtight container