One-Pan Oreo Bars

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One-pan oreo bars is a delightful dessert made with Oreo cookies, chocolate chips, and a rich brownie-like batter topped with sweetened condensed milk, ready in just 45 minutes. This easy recipe yields 12 scrumptious bars and boasts a gooey texture perfect for any sweet tooth. With their decadent flavor and satisfying crunch, they are a surefire hit at gatherings. I remember making these for my friend Lucy’s housewarming party, and they were gone within minutes!

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Their irresistible combination of chocolate and Oreos makes One-Pan Oreo Bars a standout dessert. They are easy to make in a single dish, saving time and effort.

  • Convenience: Made in one pan, these bars reduce cleanup and streamline the baking process.
  • Quick and Easy: From mixing to baking, the process takes under an hour, making it perfect for last-minute desserts.
  • Versatile flavor: The rich chocolate and crunchy Oreos offer a taste profile that appeals to both kids and adults.
  • Perfect for sharing: These bars can be cut into 12 servings, ideal for parties or family gatherings.

What ingredients do you need for One-Pan Oreo Bars?

These bars use simple ingredients you likely have on hand to create a delightful treat. Here’s what you’ll need:

The melted butter provides moisture while enhancing the chocolate flavors, ensuring these bars are both rich and gooey.

How do you make One-Pan Oreo Bars step by step?

Creating these delicious bars is a straightforward process with rewarding results.

Step 1 — Preheat and Prepare

Preheat your oven to 350°F (175°C) and grease a 9×9-inch baking pan to ensure easy removal of the bars.

Step 2 — Mix Dry Ingredients

In a medium bowl, whisk together the flour, cocoa powder, baking powder, baking soda, and salt until well combined.

You might also enjoy our one pan lemon chicken gnocchi.

Step 3 — Blend Wet Ingredients

In a large bowl, mix the melted butter and sugar until smooth, then add the eggs and vanilla extract, mixing until fully combined.

Delicious One-Pan Oreo Bars topped with chocolate drizzle and Oreo crumbs
One-Pan Oreo Bars 6

Step 4 — Combine Ingredients

Gradually add the dry ingredients to the wet mixture, stirring until just combined. Fold in the crushed Oreo cookies and chocolate chips until evenly distributed.

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9x9-inch Baking Pan

Essential Cookware9×9-inch Baking Pan

Essential for baking the One-Pan Oreo Bars, ensuring even cooking and easy removal.

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Step 5 — Prepare for Baking

Pour the batter into the prepared baking pan and spread it evenly. Drizzle the sweetened condensed milk over the top of the batter.

Step 6 — Bake

Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out mostly clean. Allow the bars to cool for about 10 minutes before cutting into squares.

For more ideas, check out our one pan breakfast.

Frequently Asked Questions About One-Pan Oreo Bars

How do I know when the bars are done?

Insert a toothpick into the center; if it comes out mostly clean, the bars are ready.

Can I use a different size pan?

A different pan size might alter the baking time and texture. Stick to 9×9 inches for best results.

How should I store leftover bars?

Store them in an airtight container at room temperature for up to three days.

Can I freeze One-Pan Oreo Bars?

Yes, wrap them individually and freeze for up to a month for longer storage.

Looking for something similar? Try our one-pan juicy chicken in balsamic sauce.

Simple Ingredient Swaps for Oreo Bars

If you’re out of certain ingredients, here are a few swaps to consider:

  • Butter: Substitute with equal parts coconut oil for a subtle tropical flavor.
  • Cocoa Powder: Replace with carob powder for a slightly sweeter taste.
  • Oreo Cookies: Use chocolate graham crackers for a different texture.

How to Store and Reheat Your Oreo Bars

To keep them fresh, store the bars in an airtight container in a cool, dry place. For longer storage, wrap each bar individually and place them in the freezer. They last up to a month frozen.

When you’re ready to enjoy them again, defrost the bars at room temperature or microwave them for a few seconds to regain their gooey texture.

Common Mistakes to Avoid When Making Oreo Bars

One typical mistake is overmixing the batter, which can lead to tough bars. Mix until ingredients are just combined.

Another error is overbaking. To prevent dryness, remove the bars when a toothpick comes out mostly clean, not entirely.

One-Pan Oreo Bars

Delicious and easy-to-make Oreo bars baked in one pan, perfect for dessert lovers.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 9 servings
Course: Dessert
Cuisine: American
Calories: 250

Ingredients
  

Equipment

  • mixing bowl
  • whisk
  • baking pan
  • oven
  • spatula

Method
 

  1. Preheat your oven to 350°F (175°C) and grease a 9x9-inch baking pan.
  2. In a medium bowl, whisk together the flour, cocoa powder, baking powder, baking soda, and salt until well combined.
  3. In a large bowl, mix the melted butter and sugar until smooth.
  4. Add the eggs and vanilla extract to the butter mixture, mixing until fully combined.
  5. Gradually add the dry ingredients to the wet mixture, stirring until just combined.
  6. Fold in the crushed Oreo cookies and chocolate chips until evenly distributed.
  7. Pour the batter into the prepared baking pan and spread it evenly.
  8. Drizzle the sweetened condensed milk over the top of the batter.
  9. Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out mostly clean.
  10. Allow the bars to cool in the pan for about 10 minutes before cutting into squares and serving.

Notes

For a richer flavor, consider adding more chocolate chips or using dark chocolate.
Delicious One-Pan Oreo Bars topped with chocolate drizzle and Oreo crumbs
One-Pan Oreo Bars 7

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