Ingredients

The following ingredients have 4 Servings
  • 1 cup unsalted butter melted
  • 1 cup brown sugar (packed)
  • 3/4 cup sugar
  • 2 large eggs (room temperature)
  • 1 egg yolk (room temperature)
  • 2 teaspoons vanilla extract
  • 2 2/3 cups flour
  • 2 teaspoons cornstarch
  • 1/2 teaspoon baking powder
  • 1 teaspoon salt
  • 1 1/4 cups chocolate chips
  • 1 1/4 cup M&M's

Instruction

  • Preheat oven to 350 degrees and prepare a 9X13 pan by lightly greasing it or lining it with parchment paper.  
  • In a large bowl, combine butter (make sure it's not super hot or it will cook the eggs), brown sugar and sugar.  Then add eggs, egg yolk and vanilla extract.
  • In a separate bowl whisk together flour, cornstarch, baking powder and salt.  
  • Add the dry ingredients to the wet and just before it's all combined add in your chocolate chips and M&M's.  Stir and then dump into your prepared pan and spread out evenly.
  • Bake for 25-30 minutes or until the edges start to turn golden brown.  Let cool for 5-10 minutes and then serve warm or completely cooled.