Brownie Oreo Cheesecake Bars – Fudgy, Creamy & Loaded with Cookies and Cream

These Brownie Oreo Cheesecake Bars bring three favorite American desserts together in one seriously indulgent bite: rich fudgy brownies, creamy vanilla cheesecake, and crunchy Oreo cookies. Each bar has a dense chocolate brownie base topped with a thick cookies-and-cream cheesecake layer and plenty of Oreo pieces throughout.

The contrast is what makes these bars so good. You get deep chocolate flavor from the brownie, a cool and tangy cheesecake center, and little pockets of crunchy chocolate sandwich cookies in every slice.

They're especially good for birthdays, bake sales, potlucks, holiday dessert trays, or anytime you need an easy make-ahead dessert for a crowd. And because cheesecake bars actually benefit from chilling, they're an ideal dessert to prepare the night before.

Ingredients

For the Fudgy Brownie Layer

• ½ cup (1 stick) unsalted butter, melted
• 1 cup granulated sugar
• 2 large eggs, room temperature
• 1 teaspoon vanilla extract
• ⅓ cup unsweetened cocoa powder
• ½ cup all-purpose flour
• ¼ teaspoon salt
• ¼ teaspoon baking powder
• ½ cup semisweet chocolate chips

For the Oreo Cheesecake Layer

• 16 ounces full-fat block cream cheese, softened
• ½ cup granulated sugar
• 2 large eggs, room temperature
• ½ cup sour cream
• 1 teaspoon vanilla extract
• 1 tablespoon all-purpose flour
• 12 Oreo cookies, roughly chopped

For the Topping

• 6–8 Oreo cookies, roughly broken into pieces
• ¼ cup semisweet chocolate chips, optional
• Melted chocolate for drizzling, optional

How to Make Brownie Oreo Cheesecake Bars

Step 1 – Prepare the Pan

Preheat the oven to 350°F (175°C).

Line a 9×9-inch baking pan with parchment paper, leaving some overhang on the sides so you can easily lift the bars out later. Lightly coat the parchment with nonstick cooking spray.

Step 2 – Make the Brownie Batter

In a large bowl, whisk the melted butter and sugar until combined.

Add the eggs and vanilla and whisk until smooth and glossy.

Add the cocoa powder, flour, salt, and baking powder. Fold everything together just until no dry streaks remain.

Fold in the chocolate chips.

Step 3 – Start the Brownie Layer

Spread the brownie batter evenly into the prepared pan.

Bake for 10–12 minutes. The brownie layer should be partially baked but not completely set.

Remove it from the oven and let it cool slightly while preparing the cheesecake mixture.

Step 4 – Make the Cheesecake Filling

Beat the softened cream cheese and sugar on medium-low speed until completely smooth and creamy.

Add the eggs one at a time, mixing on low speed just until incorporated.

Mix in the sour cream, vanilla, and flour until smooth.

Avoid beating excessively once the eggs have been added.

Step 5 – Add the Oreos

Gently fold the 12 chopped Oreos into the cheesecake mixture.

Leave some larger cookie chunks for more noticeable cookies-and-cream pockets.

Step 6 – Assemble

Carefully pour the Oreo cheesecake mixture over the partially baked brownie base.

Smooth the top with a spatula.

Scatter the remaining Oreo pieces over the cheesecake and gently press them into the surface.

Add extra chocolate chips if desired.

Step 7 – Bake

Reduce the oven temperature to 325°F (163°C).

Bake for approximately 35–45 minutes, or until the edges are set but the center still has a slight jiggle when you gently shake the pan.

Don't wait until the cheesecake becomes completely firm in the oven.

Step 8 – Cool Gradually

Turn off the oven, crack the oven door, and leave the bars inside for about 15 minutes.

Remove the pan and allow the bars to cool completely at room temperature.

Step 9 – Chill

Cover and refrigerate for at least 4 hours, preferably overnight.

This chilling time is essential for developing the creamy cheesecake texture and getting clean slices.

Step 10 – Slice & Serve

Use the parchment overhang to lift the chilled cheesecake from the pan.

Cut into squares using a large sharp knife. Wipe the knife clean between cuts for neat bakery-style bars.

Finish with crushed Oreos or a drizzle of melted chocolate if desired.

Chef's Tips for the Best Results

• Use block-style full-fat cream cheese. Whipped or spreadable cream cheese contains more moisture and can produce a softer filling.
• Bring the cream cheese, eggs, and sour cream to room temperature before mixing. This helps prevent lumps.
• Don't overbake the brownie base during the first bake—it will continue cooking underneath the cheesecake.
• Don't overmix the cheesecake after adding the eggs. Too much incorporated air can cause the cheesecake to puff and crack.
• Roughly chop the Oreos instead of crushing all of them into crumbs. Larger chunks give the bars a much better cookies-and-cream texture.
• Don't overbake the cheesecake. A slight wobble in the center is exactly what you want.
• Chill overnight whenever possible. The texture and flavor are noticeably better the next day.
• For super-clean cuts, run a sharp knife under hot water, dry it, make one cut, then wipe and repeat.

Delicious Variations

Double Chocolate Oreo Cheesecake Bars

Add ½ cup mini chocolate chips to the cheesecake mixture for even more chocolate in every bite.

Peanut Butter Oreo Bars

Swirl about ⅓ cup warmed creamy peanut butter through the cheesecake layer before baking.

Birthday Oreo Cheesecake Bars

Use Birthday Cake Oreos and add colorful sprinkles after the bars have cooled.

Mint Oreo Cheesecake Bars

Use Mint Oreos for a chocolate-mint version that's especially good around the holidays.

Salted Caramel Oreo Bars

Drizzle chilled bars with salted caramel immediately before serving.

How to Get Perfect Cheesecake Layers

The biggest mistake with cheesecake bars is rushing the cooling process.

After baking, the cheesecake should cool gradually before going into the refrigerator. Moving a piping-hot cheesecake directly into a cold refrigerator can encourage cracking and condensation.

And don't skip the final chill. The bars may seem soft immediately after cooling, but several hours in the refrigerator transforms the filling into that thick, smooth cheesecake texture you're looking for.

What to Serve With

• Fresh strawberries
• Raspberries
• Vanilla ice cream
• Whipped cream
• Hot coffee
• Cold milk
• Chocolate sauce
• Salted caramel sauce

Because these bars are already very rich, fresh berries or unsweetened coffee provide an especially nice balance.

Make-Ahead Tips

These bars are actually better when made ahead.

Prepare them the evening before serving and refrigerate overnight. Once completely chilled, keep them covered until you're ready to slice.

For parties, you can slice the bars several hours ahead and arrange them on a covered serving tray in the refrigerator.

Storage & Freezing

Refrigerator

Because of the cheesecake layer, these bars should be refrigerated.

Store them in an airtight container for up to 5 days.

For the best texture, let a serving sit at room temperature for about 10–15 minutes before eating.

Freezer

Brownie Oreo Cheesecake Bars freeze beautifully.

Once completely chilled, cut them into individual portions and wrap each bar tightly. Place them in a freezer-safe container and freeze for up to 2 months.

Thaw overnight in the refrigerator before serving.

Notes

• Classic Oreos work beautifully, but other Oreo flavors can easily change the personality of the dessert.
• Full-fat cream cheese and sour cream give the cheesecake layer its richest, smoothest texture.
• The brownie should stay dense and fudgy rather than cakey so it can support the creamy cheesecake topping.
• Keep some Oreo pieces fairly large so they're clearly visible when the bars are sliced.
• For an impressive finish, top each square with a small Oreo piece and a thin chocolate drizzle just before serving.
• These rich bars are perfect for potlucks, birthday parties, bake sales, holiday dessert tables, game-day gatherings, or make-ahead weekend treats.