Easy Oreo Brownie Cookies

If you love the fudgy, chocolatey center of a brownie but the grab-and-go ease of a cookie, these Easy Oreo Brownie Cookies are about to become your new favorite shortcut dessert. They start with a boxed brownie mix, get topped with chunks of classic Oreo cookies, and bake up in under 10 minutes. No mixer, no chilling, no fuss — just rich, crinkly-topped cookies studded with cookies-and-cream crunch.

This is the kind of recipe I reach for when company is coming and I’m short on time, or when my kids want to “bake something” on a rainy afternoon. If you’re a fan of easy boxed-mix desserts, you’re going to want to bookmark this one.

Why You’ll Love These Oreo Brownie Cookies

• Just 4 ingredients. A box of brownie mix, eggs, oil, and Oreos. That’s it.
• No special skills required. If you can stir a bowl and scoop dough, you can make these.
• Fast. They bake in 8 to 10 minutes, so you can go from craving to cookie in about half an hour.
• Kid-friendly. Breaking up the Oreos and pressing them into the dough is the perfect job for little helpers.
• Crowd-pleasing. Brownie + Oreo is a combination almost nobody turns down.

If this flavor mashup is calling your name, you’ll also love my Air Fryer Cookies & Cream Pizzookie and these dangerously easy Air Fried Oreos.

Ingredients

Here’s everything you’ll need to make these cookies. As always, the full measurements are in the printable recipe card below.

• Brownie mix: Any standard 18–20 oz family-size box works. Use your favorite brand; a fudgy mix gives the chewiest results. (If you’ve never baked from a box before, my guide on how to make boxed brownies breaks down the basics.)
• Large eggs: These bind the dough and give the cookies structure.
• Vegetable oil: Keeps the cookies moist and fudgy. Canola or melted coconut oil work too.
• Oreo cookies: Classic Oreos are perfect, but this is a fun place to experiment with flavored varieties (more on that in the variations below).

Equipment You’ll Need

• Large bowl
• Wooden or silicone spoon
• Cookie scoop
• Baking sheet
• Parchment paper
• Wire cooling rack

How to Make Oreo Brownie Cookies

Step 1: Preheat your oven to 350 degrees F and line a baking sheet with parchment paper. The parchment keeps the cookies from sticking and makes cleanup a breeze.

Step 2: Add the brownie mix, oil, and eggs to a large bowl. Stir well with a wooden or silicone spoon until everything is fully combined and you have a thick, glossy dough.

Step 3: Break each Oreo cookie into 4 pieces. You want chunky bits, not crumbs, so they stay visible and crunchy after baking.

Step 4: Use a cookie scoop to drop mounds of dough onto the prepared baking sheet, spacing them about 3 inches apart. These spread a little, so give them room.

Step 5: Arrange two pieces of Oreo onto each mound of dough, pressing them in gently so they stay put as the cookies bake.

Step 6: Bake for 8 to 10 minutes. The cookies are done when the edges are set but the centers still look slightly soft — that’s what keeps them fudgy. Avoid overbaking, or they’ll dry out.

Step 7: Remove from the oven and transfer the baking sheet to a wire cooling rack. Let the cookies cool for 5 minutes before lifting them off the sheet. They firm up as they cool, so this rest is worth the patience.

Tips for the Best Brownie Cookies

• Don’t overbake. Brownie-based cookies go from fudgy to dry quickly. Pull them when the centers still look a touch underdone.
• Use a cookie scoop. It keeps the cookies uniform so they bake evenly — the same trick I use for my Air Fryer Brownie Bites.
• Press the Oreos in. Tucking the pieces into the dough helps them anchor instead of sliding off.
• Let them rest. These cookies are fragile fresh out of the oven and set up beautifully after 5 minutes on the rack.

Variations and Add-Ins

One of the best things about this recipe is how easy it is to make it your own:

• Mint chocolate — Swap in Mint Oreos for a cool, refreshing twist.
• Golden Oreos — Use Golden Oreos for a vanilla-cookie contrast against the dark brownie base.
• Extra chocolate — Fold a handful of chocolate chips into the dough before scooping.
• Cookies & cream overload — Sprinkle a little crushed Oreo on top right out of the oven, like I do in my Cosmic Brownies.
• S’mores style — Add a few mini marshmallows alongside the Oreos for a s’mores-inspired bite.

How to Store

Store cooled Oreo Brownie Cookies in an airtight container at room temperature for up to 4 days. For longer storage, freeze them in a single layer, then transfer to a freezer bag for up to 2 months. Let them thaw at room temperature, or warm one in the microwave for a few seconds to bring back that fresh-baked, gooey texture.

Frequently Asked Questions

Can I make these in the air fryer? Yes! Line your air fryer basket with parchment, set the temperature to around 320 degrees F, and bake in small batches, checking at the 6–7 minute mark. If you’re new to air-frying baked goods, my boxed brownie air fryer guide is a helpful starting point.

What kind of brownie mix should I use? Any standard family-size box works. A “fudgy” mix yields the chewiest cookies, while a “cakey” mix gives a lighter, softer texture.

Can I leave out the oil? Oil keeps these cookies moist, so I don’t recommend skipping it. Melted butter can be substituted for a richer flavor.

My dough seems too thick — is that normal? Yes. Brownie cookie dough is much thicker than brownie batter because there’s no added water. A cookie scoop makes it easy to portion.

More Easy Oreo and Brownie Recipes

If you can’t get enough of that cookies-and-cream flavor, try these next:

• Air Fryer Brownie Cookies
• Air Fryer Oreo Egg Rolls
• Air Fryer Oreo Cheesecake
• Ninja Creami Cookies and Cream Ice Cream
• White Chocolate Covered Oreos
• Oreo Cookies and Cream Shooters