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M&M Cookie Bars Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 95 reviews
  • Author: Villerius
  • Prep Time: 5 minutes
  • Cook Time: 26 minutes
  • Total Time: 31 minutes
  • Yield: 24 cookie bars
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

These M&M Cookie Bars are thick, chewy, and packed with colorful M&M’s and semi-sweet chocolate chips. Perfect for parties, bake sales, or sharing with friends, they combine rich brown sugar caramel flavors with a delightful chocolate crunch in every bite.


Ingredients

Scale

Wet Ingredients

  • ½ cup unsalted butter (melted)
  • 2 cups brown sugar, packed
  • 2 tablespoons vanilla extract
  • 2 large eggs

Dry Ingredients

  • 2 cups all-purpose flour
  • ½ teaspoon baking soda
  • 1 teaspoon salt

Add-Ins

  • 1 cup plain M&M’s
  • 1 cup semi-sweet chocolate chips


Instructions

  1. Preheat the oven: Preheat your oven to 350ºF (175ºC) and line a 9×13 inch baking dish with parchment paper to prevent sticking and ensure easy removal.
  2. Mix wet ingredients: In a large bowl, combine the melted unsalted butter, packed brown sugar, and vanilla extract. Stir until well blended, then add the eggs and mix until the batter resembles a thick caramel consistency.
  3. Incorporate dry ingredients: In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the flour mixture to the wet batter in roughly half-cup increments, folding it in gently each time to avoid overmixing. The batter will become very thick as you combine it.
  4. Add mix-ins: Gently fold the M&M’s and semi-sweet chocolate chips into the thick batter to evenly distribute them throughout.
  5. Transfer to pan and bake: Pour the batter into the prepared baking pan and spread it evenly. Optionally, sprinkle additional M&M’s and chocolate chips on top for extra decoration. Bake in the preheated oven for 26 minutes until golden and set.
  6. Cool and slice: Remove the pan from the oven and lift the parchment paper to transfer the cookie slab onto a cooling rack. Allow it to cool completely before using a knife or bench scraper to divide it into 24 squares.

Notes

  • These cookie bars are thick, chewy, and bursting with colorful M&M’s, making them perfect for parties or bake sales.
  • You can substitute semi-sweet chocolate chips with any other chocolate chips or candy pieces of your choice.
  • Ensure the batter is thick yet well combined for the best chewy texture.
  • Store bars in an airtight container at room temperature for up to 5 days, or freeze for longer storage.

Nutrition

  • Serving Size: 1 cookie bar (approx. 54g)
  • Calories: 174 kcal
  • Sugar: 19 g
  • Sodium: 126 mg
  • Fat: 7 g
  • Saturated Fat: 4 g
  • Unsaturated Fat: 2 g
  • Trans Fat: 0 g
  • Carbohydrates: 28 g
  • Fiber: 1 g
  • Protein: 2 g
  • Cholesterol: 26 mg