Ingredients

The following ingredients have 4 Servings
  • 2½ cups all-purpose flour
  • 1 tablespoon cornstarch
  • 1 teaspoon baking soda
  • 1 teaspoon kosher salt
  • 1 cup unsalted butter (softened)
  • 1 cup light brown sugar1
  • ½ cup granulated sugar
  • 1 teaspoon vanilla extract
  • 2 large eggs
  • 2 cups chocolate chips2,3
  • 1 cup M&Ms4,5

Instruction

  • Preheat the oven to 350°F and line a 9x13-inch cake pan with parchment paper.6,7 Set aside.
  • In a medium bowl, whisk together the flour, cornstarch, baking soda, and salt. Set aside.
  • In a large bowl with a hand mixer or a stand mixer fitted with a paddle attachment, cream together the butter, sugars, and vanilla until smooth and pale.
  • Add the eggs one at a time mixing just until combined. Scrape down the sides of the bowl as needed.
  • Add the flour mixture to the butter mixture and mix just until combined.
  • Fold in the chocolate chips and M&M's - reserve some for the top of the bars.
  • Spread the cookie dough out evenly in the cake pan and top with the reserved chocolate chips and M&M's.8
  • Bake for 22 to 25 minutes minutes. The edges should be a nice golden brown and the center is soft but raised. Allow the bars to cool for at least 20 minutes in the pan before removing and slicing them into squares.9