Description

Loaded M&M Oreo Cookie Holiday Bars are the ultimate festive dessert packed with chewy cookie dough, crunchy Oreo cookies, colorful holiday M&Ms, and melty chocolate chips in every bite. These easy dessert bars are perfect for Christmas parties, holiday cookie trays, bake sales, and family gatherings. With rich buttery flavor and soft bakery-style texture, this easy recipe delivers the perfect balance of crunch and chewiness while creating one of the best holiday dessert ideas for any celebration.

Whether you need quick dessert bars for a holiday event, easy baking ideas for Christmas, or a crowd-pleasing sweet treat everyone will love, these loaded cookie bars are guaranteed to impress. They are simple to prepare, fun to customize, and perfect for make-ahead holiday baking.

Ingredients

2 ¾ cups all-purpose flour

1 teaspoon baking soda

1 teaspoon cornstarch

½ teaspoon salt

1 cup unsalted butter, softened

1 cup light brown sugar, packed

½ cup granulated sugar

2 large eggs

2 teaspoons pure vanilla extract

2 cups holiday M&M candies

18 Oreo cookies, roughly chopped

1 cup semi-sweet chocolate chips

½ cup white chocolate chips

½ cup chopped pecans or walnuts (optional)

½ teaspoon espresso powder (optional)

Extra M&Ms and Oreo pieces for topping

Instructions

1. Preheat the oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper and lightly grease it.

2. In a medium bowl, whisk together the flour, baking soda, cornstarch, and salt.

3. In a large bowl, beat the softened butter, brown sugar, and granulated sugar until light and fluffy.

4. Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.

5. Gradually mix the dry ingredients into the wet ingredients until just combined.

6. Fold in the chopped Oreo cookies, M&Ms, semi-sweet chocolate chips, and white chocolate chips.

7. Spread the dough evenly into the prepared baking pan.

8. Press extra Oreo pieces and M&Ms onto the top for a festive bakery-style appearance.

9. Bake for 28 to 35 minutes or until the edges are golden brown and the center is slightly soft.

10. Allow the bars to cool completely before slicing into squares.

11. Serve and enjoy with milk, coffee, or hot chocolate.

Notes

Do not overbake the bars because they continue to set while cooling and staying slightly soft creates the best chewy texture.

Reserve extra Oreo chunks and M&Ms to press on top before baking for a more colorful bakery-style presentation.

Allow the bars to cool fully before slicing to achieve clean squares and prevent crumbling.

Nutrition

Serving Size: 1 bar
Calories: 420
Sugar: 37g
Sodium: 230mg
Fat: 21g
Saturated Fat: 11g
Unsaturated Fat: 8g
Trans Fat: 0g
Carbohydrates: 56g
Fiber: 2g
Protein: 5g
Cholesterol: 48mg

Keywords: holiday dessert, Christmas cookie bars, Oreo cookie bars, M&M dessert bars, easy dessert recipe, festive treats, holiday baking ideas, chewy cookie bars, Christmas dessert ideas, loaded cookie bars