M&M Cookie Bars

Get ready to satisfy your sweet cravings with our mouthwatering M&M cookie bars! These delightful treats are packed with colorful candy-coated chocolates and gooey chocolate chips, making them perfect for indulging your sweet tooth. Whether you’re baking for a special occasion or simply craving a tasty treat, these M&M cookie bars are sure to be a hit with everyone. Follow our easy recipe to whip up a batch of these irresistible bars in no time!


  • 1 cup unsalted butter, softened to room temperature
  • 1 ½ cups brown sugar (light or dark)
  • ½ cup white sugar
  • 2 teaspoons vanilla extract
  • 3 large eggs
  • 3 cups all-purpose flour
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • 1 teaspoon salt
  • 2 cups M&Ms (Red, white, and blue mix, or other colorful candy-coated chocolates)
  • 2 cups chocolate chips


  1. Preheat the oven to 350 degrees Fahrenheit and line a rimmed baking sheet fully with parchment paper for easy cleanup.
  2. In a large mixing bowl, cream together the softened butter, brown sugar, and white sugar with an electric mixer until light and fluffy.
  3. Lightly beat the eggs, then add them along with the vanilla extract to the butter and sugar mixture. Mix until fully combined.
  4. In a separate medium-sized bowl, combine the flour, baking powder, baking soda, and salt. Mix the dry ingredients together.
  5. Gradually add the dry ingredients to the wet ingredients, mixing well after each addition, until a thick cookie dough forms.
  6. Fold in the chocolate chips and one cup of the M&Ms until evenly distributed throughout the dough.
  7. Spread the cookie dough onto the prepared baking sheet, using a spatula to press it evenly into the pan.
  8. Sprinkle the remaining cup of M&Ms across the top of the cookie dough for a colorful finish.
  9. Bake for 20-22 minutes, or until the edges are lightly browned and the center is set. The center should be slightly firm to the touch.
  10. Allow the cookie bars to cool in the pan for at least 20 minutes. This step is important as it allows the bars to set and makes them easier to cut.
  11. Once cooled, cut the bars into 36 even pieces and serve.

Serving and Storage Tips:

Serving Tips:

  1. Serve with a Scoop of Ice Cream: Warm up the cookie bars slightly in the microwave and serve them with a scoop of your favorite ice cream for an extra indulgent dessert.
  2. Decorate for Special Occasions: Arrange the cookie bars on a platter and decorate them with additional M&M candies or sprinkles to match the theme of your party or celebration.
  3. Pair with Milk or Coffee: Enjoy the cookie bars with a cold glass of milk for a classic combination, or pair them with a cup of hot coffee for a delightful treat.
  4. Wrap as Gifts: Package individual cookie bars in decorative bags or boxes and give them as homemade gifts for birthdays, holidays, or other special occasions.
  5. Serve as a Party Dessert: Cut the cookie bars into smaller bite-sized pieces and arrange them on a dessert platter for a delicious and convenient party treat.

Storage Tips:

  1. Store in an Airtight Container: Once cooled completely, transfer the cookie bars to an airtight container to keep them fresh.
  2. Room Temperature Storage: Store the cookie bars at room temperature for up to 3-4 days. Ensure the container is tightly sealed to maintain freshness.
  3. Refrigeration: If you prefer your cookie bars chilled, you can store them in the refrigerator for up to a week. Allow them to come to room temperature before serving for the best taste and texture.
  4. Freezing: To extend the shelf life, you can freeze the cookie bars. Wrap individual bars or the entire batch tightly in plastic wrap and aluminum foil, then place them in a freezer-safe bag or container. They can be stored in the freezer for up to 2-3 months.
  5. Thawing: When ready to enjoy, thaw the frozen cookie bars in the refrigerator overnight or at room temperature for a few hours. You can also reheat them in the microwave for a few seconds if desired.

By following these serving and storage tips, you can ensure that your M&M cookie bars remain fresh, delicious, and ready to enjoy whenever the craving strikes. Whether you’re enjoying them as a tasty snack or sharing them with loved ones, these cookie bars are sure to be a hit!


  1. Peanut Butter Lover’s Delight: Swirl peanut butter into the cookie dough before baking for a rich and nutty flavor.
  2. Oreo Cookie Crunch: Crush Oreo cookies and fold them into the cookie dough for a delightful cookies and cream twist.
  3. Toffee Crunch Bliss: Add chopped toffee pieces to the cookie dough for a sweet and crunchy texture.
  4. White Chocolate Raspberry: Substitute white chocolate chips for the chocolate chips and add dried raspberries to the cookie dough for a fruity and creamy combination.
  5. Salted Caramel Sensation: Drizzle salted caramel sauce over the cookie bars after baking for an irresistible sweet and salty treat.
  6. Trail Mix Adventure: Mix in a combination of nuts, dried fruit, and seeds into the cookie dough for a hearty and nutritious snack.
  7. S’mores Explosion: Add crushed graham crackers and mini marshmallows to the cookie dough for a gooey and indulgent s’mores-inspired treat.
  8. Coconut Macaroon Magic: Mix shredded coconut into the cookie dough and top with a drizzle of chocolate ganache for a tropical twist.
  9. Mint Chocolate Chip Madness: Add peppermint extract to the cookie dough and fold in mini chocolate chips for a refreshing and chocolaty delight.
  10. Candy Bar Extravaganza: Chop up your favorite candy bars and fold them into the cookie dough for a burst of flavor and texture in every bite.


  1. Can I use salted butter instead of unsalted butter? Yes, you can use salted butter, but you may want to reduce the amount of additional salt in the recipe to avoid over-salting.
  2. Can I use different flavors of M&Ms? Absolutely! Feel free to experiment with different flavors of M&Ms to customize the cookie bars to your preference.
  3. Can I make these cookie bars gluten-free? Yes, you can substitute gluten-free flour for the all-purpose flour in the recipe to make gluten-free cookie bars.
  4. Can I reduce the amount of sugar in the recipe? Yes, you can adjust the amount of sugar to suit your taste preferences. Keep in mind that reducing the sugar may affect the texture and sweetness of the cookie bars.
  5. Can I omit the eggs from the recipe? While eggs help bind the ingredients together and provide structure, you can try using egg substitutes such as mashed banana, applesauce, or commercial egg replacers for a vegan-friendly option.
  6. Can I use different types of chocolate chips? Yes, you can use milk chocolate, dark chocolate, or white chocolate chips, or even a combination of different types for added variety.
  7. Can I add nuts to the recipe? Absolutely! Chopped nuts such as pecans, walnuts, or almonds can be added to the cookie dough for extra crunch and flavor.
  8. Can I make these cookie bars in advance? Yes, you can prepare the cookie dough in advance and refrigerate it until ready to bake. Alternatively, you can bake the bars ahead of time and store them in an airtight container until serving.
  9. Can I double the recipe? Yes, you can double the ingredients to make a larger batch of cookie bars. Simply adjust the baking time accordingly.
  10. Can I freeze the cookie bars? Yes, the cookie bars can be frozen for future enjoyment. Wrap them tightly in plastic wrap and aluminum foil before placing them in a freezer-safe bag or container. Thaw them in the refrigerator overnight before serving.

With just a few simple ingredients and easy steps, you can create a batch of irresistible M&M cookie bars that are sure to delight your taste buds. Whether you’re enjoying them as a sweet snack or sharing them with friends and family, these colorful and gooey treats are guaranteed to be a hit. So go ahead, whip up a batch today and treat yourself to a little slice of happiness!