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4.79 from 38 votes

Chewy M&M Cookie Bars

Course cookie, Dessert
Author Divas Can Cook


  • 2 1/4 cups all-purpose flour
  • 1/2 tsp salt
  • 1/2 tsp baking soda
  • 12 Tbsp butter melted
  • 1 cup brown sugar
  • 1/2 cup white sugar
  • 1 large egg
  • 1 large egg yolk
  • 2 tsps vanilla extract
  • 1 1/2 cups M&M's divided


  • Preheat oven to 325.
  • Line a 9 x13 baking pan with greased parchment paper. Set aside.
  • In a medium bowl, stir together flour, salt and baking soda. Set aside.
  • In a large bowl, cream together melted butter, brown sugar, and white sugar.
  • Stir in large egg and egg yolk until combined.
  • Stir in vanilla extract.
  • Combine dry ingredients with wet ingredients, stirring just until flour is incorporated. Don't over stir.
  • Add in 1 cup of m&m's.
  • Press dough into an even layer in prepared pan.
  • Press remaining m&m's lightly on the top.
  • Bake for 25-30 minutes.
  • Remove from pan and let cool completely
  • Cut into squares.
  • Enjoy!


I greased my parchment paper with butter-flavored shortening. This gave a beautiful, golden, crisp, buttery tasting bottom. Be sure to leave enough overhang on the parchment to make it easy to remove from the pan when done.