Oreo Brownies

5 from 37 votes

These fudgy Oreo brownies are chocolate brownies full of chocolate chips and Oreo pieces. They are easy to make and have crinkle top.

Prep Time20

Cook Time45

Total Time1 5

Servings: brownies

Calories: 302kcal

Preheat oven to 325°F. Spray an 9X9 inch pan with baking non-stick spray. Line the bottom and 2 sides of the pan with parchment paper and spray again.
In a mixing bowl, sift the flour, cocoa powder, cornstarch and salt. Set aside. Using a mixer with a whisk attachment, mix the eggs, egg yolk, and sugar on high speed for 5 minutes. The sugar should be light and pale.
2 cups White granulated sugar, 3 Large eggs, ¾ cup All-purpose flour, 1 cup Dark unsweetened cocoa powder, 1 tablespoon Cornstarch, ½ teaspoon Salt, 1 Egg yolk
While mixing, heat the butter in the microwave until melted. Let it slightly cool while the eggs beat. Add in melted butter, oil, and vanilla and mix on low until combined. Add in dry ingredients and mix on low until just combined.
½ cup Unsalted butter, ½ cup Oil, 1 teaspoon Pure vanilla extract
Take off the mixer, and use a rubber spatula to scrape the bowl. Add the chocolate chips and Oreo pieces. Pour the batter into the pan. Top with extra Oreo pieces.
1 cup Semi-sweet chocolate chips, 1 cup Oreo pieces
Bake for 45-55 minutes. The center should be slightly underdone and the edges should be set. If you stick a toothpick in and it has batter on it, bake for another 5-10 minutes. If the toothpick comes out with crumbs, then it is ready.
Let it cool completely in the pan on a cooling rack. Once cool, take out of the pan and serve.

Flour- Make sure flour is spooned and leveled or use a kitchen scale. Compacted flour can lead to cakey brownies.

High altitude baking- Add an extra ½ tablespoon of flour.

Make sure to wait 'til brownies are completely cool before cutting. The chocolate flavor is stronger once it is cool.