These Oreo Brownies are exactly the kind of recipe I turn to when I want something quick, impressive, and reliably chocolatey. They come together fast, use a handful of pantry staples, and fold crushed Oreos into a rich cocoa batter for extra crunch and cookie flavor in every bite. No ganache, no tempering—just a straightforward tray bake that behaves.
I like that the recipe balances speed and texture: enough structure from the flour and eggs to hold neat squares, but still moist thanks to the vegetable oil. The Oreos give the brownies a playful, familiar crunch. If you’re pressed for time, the whole process—from mixing to oven—takes under half an hour, then cooling time after that.
Below you’ll find the ingredients exactly as written for this recipe and the step-by-step directions in order. I’ll also walk through what matters in each stage, common pitfalls and how to avoid them, storage guidance, and quick answers to the questions I get most often about this kind of brownie.
What’s in the Bowl
Think of this as a short inventory before you start: oil, sugar, eggs, vanilla, flour, cocoa, a pinch of leavening and salt, and a good handful of crushed Oreos. The recipe uses crushed Oreos both inside the batter and on top for texture. Measure once, then move through the steps steadily.
Ingredients
- ½ cup (120 ml) vegetable oil — provides moisture and keeps the crumb tender.
- ½ cup (100 g) granulated sugar — sweetens and contributes to the brownie’s sheen.
- 2 large eggs — bind the batter and give structure; use room temperature for even mixing.
- 1 teaspoon pure vanilla extract — lifts the chocolate and cookie flavors.
- ½ cup (65 g) all-purpose flour — forms the base of the brownie’s structure.
- 35 g cocoa powder — supplies the chocolate flavor; use unsweetened cocoa.
- 2 g (¼ teaspoon) baking powder — a small lift so the brownies aren’t too dense.
- 2 g (¼ teaspoon) salt — balances sweetness and enhances chocolate notes.
- 8 Oreo cookies — crushed; some go into the batter, some are reserved for the topping.
How to Prepare (Oreo Brownies)
- Preheat the oven to 350°F (180°C). Lightly grease a 9×9 inch (22×22 cm) baking pan.
- Crush all 8 Oreo cookies into coarse pieces. Reserve the pieces from 2 cookies for the topping and set them aside; keep the pieces from the remaining 6 cookies for the batter.
- In a large bowl, whisk together ½ cup (120 ml) vegetable oil and ½ cup (100 g) granulated sugar until combined.
- Add 2 large eggs (at room temperature) and 1 teaspoon pure vanilla extract to the oil-and-sugar mixture. Whisk until the mixture is smooth and well combined.
- In a separate bowl, whisk together ½ cup (65 g) all-purpose flour, 35 g cocoa powder, ¼ teaspoon (2 g) baking powder, and ¼ teaspoon (2 g) salt.
- Add the dry ingredients to the wet ingredients and stir gently until just combined. Do not overmix.
- Fold the reserved Oreo pieces for the batter (the pieces from 6 cookies) into the batter until evenly distributed.
- Pour the batter into the prepared pan and spread it into an even layer. Sprinkle the remaining reserved Oreo pieces (from 2 cookies) evenly over the top.
- Bake in the preheated oven for about 20 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs (not wet batter). If necessary, bake a few minutes longer, checking frequently.
- Remove the pan from the oven and let the brownies cool completely in the pan before slicing into squares and serving.
Why It Deserves a Spot
These brownies are quick, forgiving, and have a crowd-pleasing personality. You get chocolate intensity from the cocoa and the familiar, nostalgic crunch of Oreos without a lot of fuss. For a casual get-together, they’re easy to portion and transport. For a weeknight craving, they’re fast enough to justify making a pan on short notice.
They also play well with different serving styles: warm and soft from the oven, or chilled and fudgy after cooling. Because the ingredient list is short and predictable, you can rely on consistent results once you’ve practiced the bake time in your own oven.
Healthier Substitutions
If you want to nudge these brownies a bit lighter without changing the core recipe, focus on small adjustments rather than wholesale swaps. A modest reduction in sugar—say, trimming a tablespoon or two—will reduce sweetness without wrecking texture. Using a neutral vegetable oil keeps texture consistent; if you prefer a different oil for flavor, choose one with a mild profile.
Because Oreos are central to the recipe, cutting them down will reduce overall added sugars and calories. Try halving the Oreo amount used in the batter and keeping a few on top for the look and crunch.
Appliances & Accessories
- Oven settable to 350°F (180°C) — consistent oven temperature matters for even baking.
- 9×9 inch (22×22 cm) baking pan — the size affects bake time and depth.
- Mixing bowls — one for wet ingredients and one for dry ingredients.
- Whisk and spatula — whisk for combining wet ingredients; spatula for folding the batter.
- Measuring cups and a kitchen scale (optional) — the recipe lists both volume and weight for precision.
- Toothpick or cake tester — to check doneness.
Pitfalls & How to Prevent Them
- Overbaking — Brownies go from moist to dry quickly. Start checking at 18 minutes. Remove when a toothpick comes out with a few moist crumbs, not wet batter.
- Overmixing — Stirring too long develops gluten and makes the brownie cakier. Mix dry into wet only until combined.
- Uneven Oreo distribution — Crush Oreos into coarse pieces, not dust. Fold gently and evenly so you don’t end up with clumps in one corner.
- Sticking to the pan — Lightly grease the pan or line it with parchment for clean squares and easy removal.
- Dense center — If the center stays underdone while edges are set, your oven may have hot spots; rotate the pan halfway through baking, and trust the toothpick test over time alone.
Customize for Your Needs
If you prefer a more cookie-forward bar, increase the size of the Oreo pieces slightly or reserve more for the top so each bite has a visible chunk. For neater, thinner squares, press the batter into the pan evenly and allow it to cool completely before slicing.
Want a fudgier center? Let the pan cool fully to room temperature; cooling firms up the brownies and keeps the interior dense and moist. For slightly cakier brownies, bake a minute or two longer until the toothpick shows fewer moist crumbs.
Method to the Madness
Mixing
Whisking the oil and sugar first creates a simple emulsion that lets the eggs incorporate smoothly. Room-temperature eggs mix in cleanly and help the batter come together quickly. Combine dry and wet just until no streaks of flour remain—this is the single most important step for texture.
Folding and Baking
Folding the crushed Oreos into the batter keeps pieces intact and prevents overworking the batter. Spread the batter into an even layer in the greased pan so it bakes uniformly. Watch closely as you reach the 18–22 minute mark; ovens vary, and those few minutes change the final texture.
Refrigerate, Freeze, Reheat
Storage is simple. Once cooled completely, store brownie squares in an airtight container at room temperature for up to 3 days. For longer storage, freeze the cooled, cut squares in a single layer on a tray until firm, then transfer to a freezer-safe container or bag for up to 3 months.
To thaw, move frozen squares to the refrigerator overnight or leave them at room temperature for an hour. Reheat briefly in the microwave for 10–15 seconds if you want them warm—don’t overdo it or they’ll dry out.
Quick Questions
- Can I use a different cookie than Oreo? This recipe is built around the crunchy, sweet profile of Oreos. Different cookies will change texture and flavor; if you try another cookie, adjust crushed size and distribution accordingly.
- Do I need to melt chocolate? No. This recipe uses cocoa powder and doesn’t require melted chocolate, which keeps prep very quick.
- Why so much oil? Oil keeps these brownies moist and gives a tender crumb; butter would change flavor and texture but can be used if you prefer a different mouthfeel.
- Can I double the recipe? Yes, double the ingredients and bake in a larger pan (13×9 inch) but monitor bake time; it will need longer in the oven.
Let’s Eat
Slice these Oreo Brownies into modest squares—people tend to go for seconds otherwise. They’re great plain, with a cold glass of milk, or piled on a dessert plate with a scoop of vanilla ice cream if you’re feeling indulgent. Let them cool fully for clean slices, or serve warm for a gooey, hands-on treat.
Make them once and you’ll have a quick, dependable dessert in your rotation. They’re especially useful when you want something familiar and fun with minimal effort. Enjoy.
Oreo Brownies
Ingredients
Ingredients
- ?1/2 cup120 ml 1/2 cupvegetable oil
- ?1/2 cup100 g 1/2 cupgranulated sugar
- ?2 large 2eggsat room temperature
- ?1 teaspoon 1 teaspoonpure vanilla extract
- ?1/2 cup65 g 1/2 cupall purpose flour
- ?35 g ?cupcocoa powder
- ?2 g 1/4 teaspoonbaking powder
- ?2 g 1/4 teaspoonsalt
- ?8 8Oreo cookiescrushed
Instructions
Instructions
- Preheat the oven to 350°F (180°C). Lightly grease a 9×9 inch (22×22 cm) baking pan.
- Crush all 8 Oreo cookies into coarse pieces. Reserve the pieces from 2 cookies for the topping and set them aside; keep the pieces from the remaining 6 cookies for the batter.
- In a large bowl, whisk together ½ cup (120 ml) vegetable oil and ½ cup (100 g) granulated sugar until combined.
- Add 2 large eggs (at room temperature) and 1 teaspoon pure vanilla extract to the oil-and-sugar mixture. Whisk until the mixture is smooth and well combined.
- In a separate bowl, whisk together ½ cup (65 g) all-purpose flour, 35 g cocoa powder, ¼ teaspoon (2 g) baking powder, and ¼ teaspoon (2 g) salt.
- Add the dry ingredients to the wet ingredients and stir gently until just combined. Do not overmix.
- Fold the reserved Oreo pieces for the batter (the pieces from 6 cookies) into the batter until evenly distributed.
- Pour the batter into the prepared pan and spread it into an even layer. Sprinkle the remaining reserved Oreo pieces (from 2 cookies) evenly over the top.
- Bake in the preheated oven for about 20 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs (not wet batter). If necessary, bake a few minutes longer, checking frequently.
- Remove the pan from the oven and let the brownies cool completely in the pan before slicing into squares and serving.
Equipment
- 9x9-inch baking pan
- Mixing bowls
- Whisk
- Spatula
- Measuring Cups
