Recipe Details

M&M Cookie Bars

4 Stars
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These M&M cookie bars are big bake sale vibes. They've got all the comfort of a chocolate chip cookie, with the added crunch of M&M's and the added heft of a bar shape, making for a delicious treat that’s impossible to put down.

Ingredients


  • Cooking spray

  • 1 1/2 c. 

    (320 g.) packed light brown sugar

  • 1 c. 

    (2 sticks) unsalted butter, melted

  • 2 

    large eggs

  • 2 tsp. 

    pure vanilla extract

  • 1/2 tsp. 

    baking soda

  • 1/2 tsp. 

    kosher salt

  • 2 c. 

    (240 g.) all-purpose flour

  • 1 c. 

    (170 g.) semisweet chocolate chips

  • 1 c. 

    (180 g.) M&M’s

Description

  1. Step 1Preheat oven to 350°. Thoroughly coat a 13"-by-9" baking dish with cooking spray. Fold a 16" sheet of parchment lengthwise to fit along bottom and sides of baking dish, leaving some overhang at the handles. Spray with cooking spray.
  2. Step 2In a large bowl, whisk brown sugar and butter until sugar is dissolved. Whisk in eggs one at a time until incorporated, then whisk in vanilla, baking soda, and salt.
  3. Step 3Using a flexible spatula, fold in flour, chips, and M&M’s until just combined.
  4. Step 4Transfer dough to prepared dish and smooth in an even layer.
  5. Step 5Bake bar until a tester inserted into the center comes out clean, 35 to 40 minutes. Let cool in baking dish 1 hour. Using parchment overhang, lift bar onto a cutting board. Slice into 12 bars. 
  6. Step 6Make Ahead: Bars can be made 1 week ahead. Store in an airtight container at room temperature.