Recipe Details

M&M Cookie Bars

May 6, 2024

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. They have a perfectly sugary crust with a gooey, chocolatey interior in a sharable format. Regular M&M’s are perfect for year-round use, but a bag of holiday colors makes these easy bars extra festive and fun. Use green and red M&M’s for Christmas cookie swaps and blue and white M&M’s for Hanukkah ones. Stack them with our white chocolate peppermint blondies for a holiday-worthy dessert spread, or serve with a big mug of hot cocoa for a cozy winter treat.

Ingredients

  • Cooking spray
  • 1 1/2 c.(320 g.) packed light brown sugar
  • 1 c.(2 sticks) unsalted butter, melted
  • 2large 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

Directions

    1. Step 1

      Preheat 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.

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