Homemade Sourdough Oreo Cookies

There’s nothing quite like the taste of an Oreo cookie – that perfect combination of crisp chocolate cookies with a creamy filling in the center. If you’re a fan of the iconic store-bought Oreo sandwich cookie, you’ll love these homemade sourdough oreo cookies. Not only do these cookies taste even better than the originals, but they’re also made with sourdough, adding a layer of gut-healthy goodness that enhances the flavor without sacrificing that familiar taste and texture.

These homemade sourdough Oreo cookies strike the perfect balance between sweet and chocolatey, with a slight crispness and a creamy filling that melts in your mouth. The sourdough starter helps bring out the deep, rich flavors of the chocolate, and the cookies are the perfect mix of indulgence and homemade charm. Whether you’re enjoying them as a treat with coffee or dunking them in a glass of milk, these cookies are a satisfying and healthier alternative to their store-bought counterparts.

​​Homemade Sourdough Oreo Cookies Recipe Rundown

Taste: These homemade sourdough Oreo cookies have the familiar chocolatey taste of the classic store-bought version but with a richer, more complex flavor. The cocoa base is intense and bittersweet, perfectly complemented by the creamy vanilla filling. The sourdough starter enhances the depth of flavor without any sour taste, making these cookies truly indulgent.

Texture: Expect a crisp, snappy cookie exterior that gives way to a soft, creamy filling in the center. The sourdough fermentation adds a slight chew to the cookie, making it both crispy and tender at the same time. The buttercream filling is rich, creamy, and smooth.

Ease: These cookies are surprisingly easy to make! The hardest part is waiting for the dough to ferment overnight. Otherwise, it’s a straightforward recipe with simple ingredients.

Pros: Homemade and gut-friendly thanks to the natural fermentation. They taste much better than store-bought Oreos and are customizable with different fillings or sizes. Perfect for sharing or pairing with coffee!

How to Make Homemade Sourdough Oreo Cookies:

1. Cream the butter and sugar until light and fluffy.
2. Mix in the sourdough starter and egg.
3. Add the dry ingredients (flour, cocoa powder, baking soda, baking powder, and salt).
4. Let the dough ferment for 8-12 hours.
5. Preheat the oven and shape the dough into small balls, flattening them on a baking sheet.
6. Chill for 10 minutes in the fridge or freezer.
7. Bake until crisp, then cool.
8. For the filling, beat butter and vanilla, then add powdered sugar to make it creamy.
9. Assemble the cookies by spreading the filling between two cookies.

Tips for Easy Homemade Sourdough Oreo Cookies:

• Chill the dough if it feels too soft: If the dough becomes too sticky to work with, pop it in the fridge for 15-30 minutes before shaping the cookies.
• Use parchment paper: It helps prevent the cookies from sticking and ensures even baking.
• Don’t skip the fermentation: The overnight rise allows the sourdough to work its magic, developing flavor and improving texture.
• Cool the cookies completely before filling: This ensures the buttercream doesn’t melt and slide off the cookies.
• Customize the filling: Get creative with your fillings—swap vanilla for peppermint or chocolate buttercream, or try adding a spoonful of peanut butter!

What Kind of Cocoa Powder is in Oreos? Why Are Oreos Black?

Oreos get their deep, almost black color from Dutch-process cocoa powder, which is a type of cocoa that’s been treated with an alkaline solution to reduce its acidity. This process darkens the cocoa and results in a smoother, less bitter flavor than natural cocoa powder. This is why traditional Oreos have such a dark, rich appearance. When making these homemade sourdough Oreo cookies, using Dutch-process or black cocoa powder will help you achieve the same dark, rich color and flavor. If you don’t have access to Dutch-process cocoa, regular cocoa powder will work, but the cookies will be slightly lighter and have a stronger, more bitter taste.

How to Make Double-Stuffed Oreos

If you’re a fan of extra filling in your Oreo cookies, it’s easy to make these sourdough Oreos double-stuffed. Simply double the amount of buttercream filling when preparing the cookies. After assembling your cookies, add a second layer of the buttercream on top of the first layer before placing the second cookie. This will give you a rich, thick filling just like the classic double-stuffed Oreos.

How to Store Homemade Oreo Cookies:

• Store in an airtight container at room temperature for up to 3 days.
• Refrigerate for longer storage (up to 6 days) but let them come to room temperature before serving for the best texture.
• Freeze the unbaked dough in balls for up to 3 months. Thaw and bake when ready.
• Freeze baked cookies for up to 3 months; thaw before serving.
• Keep the buttercream filling refrigerated if made in advance to avoid melting.

Can You Freeze Homemade Oreos?

Yes, homemade Oreo cookies can be frozen. If you plan on freezing them, it’s best to freeze the cookies without the filling. Once the cookies are baked and cooled, you can freeze them in an airtight container for up to 3 months. When ready to eat, thaw the cookies at room temperature, then make the filling fresh and assemble the cookies. You can also freeze assembled Oreos, but the texture of the buttercream may change slightly after thawing.

Health Benefits of Sourdough

Sourdough isn’t just a trend—it’s a baking technique that’s been used for centuries, and it offers a range of health benefits. The sourdough fermentation process involves the use of wild yeast and lactic acid bacteria (LAB), which break down the carbohydrates and proteins in the dough, making it easier to digest. The natural fermentation process also breaks down gluten, which can make sourdough products gentler on the digestive system compared to those made with commercial yeast. Additionally, sourdough is a rich source of prebiotics, which feed the good bacteria in your gut, supporting overall gut health. In these sourdough Oreo cookies, you get all the indulgent flavors of your favorite treat with the added benefits of sourdough!

What Do Sourdough Oreo Cookies Taste Like?

Sourdough Oreo cookies taste just like the classic sandwich cookies you know and love, but with a deeper, richer flavor thanks to the use of high-quality cocoa and real butter. The sourdough adds a subtle complexity without overpowering the cookie. The filling is rich and creamy, just like in the original version. These cookies strike the perfect balance between chocolatey, sweet, and creamy.

What Are Sourdough Cookies?

Sourdough cookies are made with a small amount of sourdough starter, which helps naturally ferment the dough. The starter adds a bit of chewiness to the cookie dough and can enhance the depth of flavor. Unlike bread, where the sourdough starter plays a bigger role in the texture and taste, cookies only require a small amount to help with fermentation and texture without a noticeable “sour” flavor. It’s a great way to use up some of your sourdough starter while baking delicious treats.

How Long Do You Ferment for?

For these sourdough Oreo cookies, the dough should ferment at room temperature for 8-12 hours. This allows the sourdough starter to naturally leaven the dough, breaking down the flour and creating a more complex flavor. After fermentation, the dough can be refrigerated for up to 24 hours, but it’s best to bring it back to room temperature before baking for optimal results.

Can I Use Sourdough Discard?

While you can technically substitute sourdough discard in this recipe, it’s not recommended. Active sourdough starter offers significant health benefits that sourdough discard can’t fully provide. During the fermentation process, the live yeast and beneficial bacteria in an active starter help break down gluten, making the cookies easier to digest. This fermentation process also increases the availability of vitamins, minerals, and prebiotics, all of which support better gut health. By using an active starter, you’re not only enhancing the flavor of your cookies but also reaping the benefits of a naturally fermented dough. If you choose to use discard, the cookies will still be delicious, but they won’t offer the same digestive and nutritional advantages.

Homemade Oreo Filling Variations

You can get creative with the filling for these sourdough Oreo cookies. One popular variation is a peanut butter filling!

Peanut Buttercream Filling Ingredients:

• ½ cup peanut butter
• ½ cup unsalted butter, softened
• 2 cups powdered sugar
• 1 teaspoon vanilla extract
  Mix the butter and peanut butter together until smooth. Gradually add the powdered sugar and vanilla, beating until creamy and smooth. Spread or pipe onto the cookies as usual for a delicious peanut butter twist!

Chocolate Buttercream Filling Ingredients:

• 1 stick (113g) unsalted butter, at room temperature
• 1½ cups (180g) powdered sugar, sifted
• 2 tablespoons unsweetened cocoa powder
• 1-2 tablespoons milk or heavy cream
• 1 teaspoon vanilla extract
• Pinch of fine sea salt

Instructions to Make Butter Cream

Cream the Butter: In a large bowl, beat the butter on medium speed until light and creamy.

Add Dry Ingredients: Gradually add the powdered sugar and cocoa powder, beating on low speed to incorporate. Scrape down the sides of the bowl as needed.

Add Wet Ingredients: Add the vanilla extract, a pinch of salt, and 1 tablespoon of milk or cream. Beat on medium speed until the mixture is smooth and fluffy. If the buttercream is too thick, add more milk, 1 tablespoon at a time, until it reaches your desired consistency.

Frequently Asked Questions

Can I use a stand mixer to make the dough?
Yes! A stand mixer with a paddle attachment is perfect for making this dough. It saves time and energy, allowing you to mix the butter and sugar until light and fluffy, which is essential for achieving the right texture in the cookies. If you don’t have a stand mixer, you can also mix the dough by hand, but it will take a bit more effort to get the right consistency.

Can I use whole wheat flour instead of all-purpose flour?
You can substitute whole wheat flour for all-purpose flour, but keep in mind that the texture of the cookies will be slightly different. Whole wheat flour tends to be denser, which may result in a heavier cookie. If you want to add some whole grain benefits while keeping the texture light, you can try using half whole wheat and half all-purpose flour.

Why do you need to ferment the dough?
Fermenting the dough allows the sourdough starter to work its magic. During the fermentation process, the starter helps break down complex carbohydrates and gluten, making the cookies easier to digest. This step also enhances the flavor, giving the cookies a richer taste. While fermenting takes time, it’s worth it for the depth of flavor and added health benefits.

Can I use store-bought Oreo cookies for this recipe?
This recipe is designed for making homemade sourdough Oreo cookies from scratch. However, if you’re short on time and want a quick hack, you can use store-bought Oreo cookies and add the homemade filling to enhance the flavor. But for the best results, making the cookies from scratch will give you that fresh, homemade taste that can’t be beaten. Plus, its gut healthy too 🙂 

How long should I let the dough ferment?
The dough should ferment for 8-12 hours at room temperature. This allows the sourdough starter to fully activate and provide the rich texture and flavor you’re looking for. If you’re in a rush, you can cut the fermentation time down to 6 hours, but the flavor will be less developed. For the deepest flavor, fermenting overnight is recommended.

How do I store the leftover dough?
If you aren’t ready to bake right after fermentation, you can refrigerate the dough for up to 24 hours. When you’re ready to bake, bring the dough back to room temperature for about 1-2 hours. This will help the dough soften and become easier to shape into cookies.

Can I freeze the dough or baked cookies?
Absolutely! Both the dough and the baked cookies freeze well. To freeze the dough, shape it into balls, place them on a baking sheet, and freeze until solid. Then transfer the dough balls to an airtight container or freezer bag. You can bake them straight from frozen—just add a few extra minutes to the bake time. For baked cookies, let them cool completely before freezing in an airtight container. They’ll last up to 3 months in the freezer.

If You Loved These Homemade Sourdough Oreo Cookies, You’ll Love These:

• Sourdough Chocolate Chip Cookies
• Matcha Sourdough Cookies
• Dubai Sourdough Cookies
• Strawberry Sourdough Cookies
• Peanut Butter Sourdough Cookiest

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