m&m cookie bars

How To Make m&m cookie bars

• Step 1
  Preheat the oven to 350°F. Line a 9×13 baking pan with parchment paper. Coat with nonstick spray and set aside.
• Step 2
  In the bowl of your stand mixer fitted with the paddle attachment, mix the butter, granulated sugar, and brown sugar together on medium speed for 2 minutes.
• Step 3
  Add in the eggs, vanilla, salt, baking powder, and cornstarch and mix until combined, scraping the sides of the bowl as necessary.
• Step 4
  Turn the mixer to low and add in the flour, mixing until incorporated.
• Step 5
  Stir in the M&Ms and chocolate chips until combined.
• Step 6
  Spread the cookie dough into the prepared pan, if desired press additional M&Ms and chocolate chips into the top of the dough, and bake for 25 – 30 minutes until the edges are golden and the center is almost set.
• Step 7
  Allow to cool in the pan completely before cutting into bars.
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