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M&M Chocolate Chip Cookie Bars

M&M chocolate chip cookie bars bake in a 9x13-inch pan with chewy centers, golden edges, and chocolate chips in every bite. Cool the bars completely before cutting for neat squares.
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Prep Time 15 minutes
Cook Time 28 minutes
Cooling 1 hour
Total Time 1 hour 43 minutes
Servings: 24 servings
Course: Dessert
Cuisine: American
Calories: 220
Ingredients Equipment Method Notes

Ingredients
  

  • 1 cup unsalted butter softened
  • 0.75 cup light brown sugar packed
  • 0.5 cup granulated sugar
  • 2 eggs large, at room temperature
  • 2 tsp vanilla extract
  • 2.25 cup all-purpose flour
  • 1 tsp baking soda
  • 0.5 tsp salt
  • 1 cup semisweet chocolate chips
  • 1 cup M&M's

Equipment

  • 1 9x13-inch baking pan

Method
 

  1. Heat the oven to 350°F.
  2. Grease a 9x13-inch baking pan.
  3. In a large bowl, beat the butter, brown sugar, and granulated sugar until creamy, about 2 minutes.
  4. Beat in the eggs one at a time.
  5. Mix in the vanilla extract.
  6. In a separate bowl, whisk together the flour, baking soda, and salt.
  7. Add the dry ingredients to the butter mixture and mix just until combined.
  8. Stir in the chocolate chips and M&M's.
  9. Press the dough evenly into the prepared pan.
  10. Bake for 24 to 28 minutes, until the edges are golden brown and the center is set.
  11. Cool completely in the pan, about 1 hour, before cutting into bars.

Notes

For neat bars, let them cool completely in the pan before cutting. Store covered in the refrigerator for up to 5 days; freeze for up to 3 months. For a dairy-free swap, use dairy-free butter and chocolate chips.