Home > Desserts > Oreo Brownies Oreo Brownies May 22, 2015 | 21 Comments SAVE TO RECIPE BOX Jump to Recipe This post may contain affiliate links. Please read my disclosure policy. Oreo brownies (with an option to add in some M&Ms!) FOLLOW ALONG! Subscribe to my newsletter and follow along on Facebook, Pinterest and Instagram for the latest updates, recipes and content. Oreo Brownies 5 from 4 votes - Review this recipe SAVE TO RECIPE BOX Print Recipe Oreo Brownies 5 from 4 votes - Review this recipe SAVE TO RECIPE BOX Print Recipe Course Dessert Cuisine American Keyword M&M Brownie Bars Prep Time 10 minutes Cook Time 20 hours Total Time 20 hours 10 minutes Servings 1 8x8 pan Calories 293kcal Cost $3.45 Ingredients1 box brownie mix + ingredients called for12 chocolate sandwich cookies2/3 cup M&M's separated InstructionsLine an 8 x 8 pan with parchment paper and then lightly spray the paper with nonstick spray. This will help in easy removal of the brownies.Preheat the oven according to brownie mix instructions.In a large bowl, prepare the brownies according to the brownie mix instructions.Coarsely chop or crush the Oreos. You can crush or chop them as large or as fine as you like. I like some bigger chunks in these brownies.Mix the chopped oreos and 1/3 cup of the M&M's into the batter.The batter will be thick! Pour the batter into the prepared pan and sprinkle the remaining 1/3 cup of M&M's evenly over the top of the brownies.Bake according to the directions for an 8 x 8 pan. Ever so slightly under-baking these brownies makes them ultra fudgy and keeps the cookies softer throughout the batch. Nutrition FactsCalories: 293kcal DID YOU MAKE THIS RECIPE? I love hearing from you when you've made one of my recipes! Tag me on Instagram at @ChelseasMessyApron or leave me a comment below.