M&M Cookie Bars

4.75 — Votes 8 votes

These soft, chewy M&M Cookie Bars are the ultimate sweet treat and super easy to make. Perfect for a movie night in, to serve to a crowd, or to have stocked in the freezer for when the sweet tooth hits!

Prep Time15

Cook Time30

Total Time45

Course: Dessert

Cuisine: American

Diet: Gluten Free

Servings: servings

Author: Amber Goulden

Ingredients

½ cup 4 ounces butter, melted
1 cup brown sugar, 192 grams
1 teaspoon vanilla extract
2 eggs, room temperature
1½ cups all-purpose flour (we used King Arthur for gluten-free!), 186 grams
½ teaspoon baking soda
½ teaspoon coarse sea salt, or ¼ teaspoon fine salt
1 cup M&Ms

Instructions

Preheat the oven to 325°F and grease an 9x9 pan with butter, or line with parchment paper.
Whisk the butter, eggs, sugar, and vanilla extract together in a large bowl.
Add the flour, baking soda, and salt to the bowl and stir to combine. Once the flour is fully incorporated, mix in the M&Ms.
Press the mixture into the bottom of a 9x9 pan, and bake for 30-35 minutes, until the top is browned and a toothpick inserted into the center of the pan comes out clean.

Notes

Don’t over-pack your flour - when you’re measuring flour for a baked good, use a dry measuring cup to scoop the flour, then even it off (letting any extra flour fall back into the bag) using a butter knife. Don’t press your flour into the measuring cup – this will pack it in, and you’ll end up with too much flour.

Don’t overmix - be sure to mix the ingredients just until they’re incorporated. Overmixing often results in gummy or overly chewy baked goods!

Use a metal pan - metal pans are best for these cookie bars because the metal heats up quickly, and allows the outside of the cookie bars to get golden brown.

Add some extra M&M’s on top - for some added decoration, place a few M&M’s on top of the dough before baking or press a few on top right after you take the cookie bars out of the oven.

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