Name: Sourdough Cosmic Brownies: Fudgy, Nostalgic Chocolate Bliss
Prep time: 10 min
Cook time: 35 min
Total time: 105 min
Ingredients: 1 cup All Purpose Flour (Swap for whole wheat flour for added fiber.); 1 cup White Sugar (Coconut sugar can be used for a lower glycemic option.); 1/2 cup Cocoa Powder (Opt for Dutch-processed cocoa for deeper color.); 1/4 teaspoon Salt (Pink Himalayan salt adds a lovely touch.); 1 teaspoon Baking Powder (Baking soda can be substituted with adjustments.); 1 cup Chocolate Chips (Semi-sweet is recommended, but dark chocolate adds depth.); 1/2 cup Butter (Substitute with coconut oil for a dairy-free alternative.); 2 large Eggs (Flax eggs make a great vegan substitute.); 1 teaspoon Vanilla Extract (Using pure vanilla yields the best results.); 1 cup Sourdough Starter (Unfed or active starter works well.); 1 cup Heavy Whipping Cream (Coconut cream can work for a dairy-free version.); 1 cup Mini M&Ms (Consider chocolate-coated candies for a similar effect.)

Jump to Recipe Print Recipe

Just when I thought I’d discovered all the ways to enjoy chocolate, I stumbled upon a delightful twist: Sourdough Cosmic Brownies. These fudgy, rich chocolate treats combine the nostalgic appeal of childhood and the unique tang of sourdough, creating a flavor experience that feels both comforting and adventurous. With just 10 minutes of prep time, you can whip up a batch that not only satisfies your sweet cravings but also puts your sourdough discard to good use. Plus, the addition of crunchy mini M&Ms on top takes them from delicious to downright irresistible! What if I told you these brownies could become your new guilty pleasure? Let’s dive into the world of baking and see for yourself!

Why are Sourdough Cosmic Brownies special?

Irresistible Fudginess: Each bite offers a rich, deeply chocolatey experience that is oh-so-satisfying!

Nostalgic Touch: Combining traditional cosmic brownies with a modern sourdough twist, they bring back that childhood joy you crave.

Simple Prep: With just 10 minutes of hands-on time, you’ll have delicious brownies ready to bake!

Versatile Ingredient Use: By utilizing your sourdough discard, not only do you reduce waste, but you also enhance flavor.

Crunchy Surprise: Topped with mini M&Ms, these brownies add a delightful crunch, making them perfect for gatherings or cozy nights in.

You won’t want to miss making these Sourdough Cosmic Brownies, and if you’re keen on other unique recipes, check out our guide on delicious chocolate desserts.

Sourdough Cosmic Brownie Ingredients

• Get ready to indulge with these unique treats!

For the Brownies

All Purpose Flour – Provides structure to the brownies; swap for whole wheat flour for added fiber.
White Sugar – Adds sweetness; coconut sugar can be used for a lower glycemic option.
Cocoa Powder – Delivers rich chocolate flavor; opt for Dutch-processed cocoa for deeper color.
Salt – Balances sweetness and enhances flavor; pink Himalayan salt adds a lovely touch.
Baking Powder – Acts as a leavening agent for a lighter texture; baking soda can be substituted with adjustments.
Chocolate Chips – Adds rich texture; semi-sweet is recommended, but dark chocolate adds depth.
Butter – Provides moisture and richness; substitute with coconut oil for a dairy-free alternative.
Eggs – Binds ingredients and adds moisture; flax eggs make a great vegan substitute.
Vanilla Extract – Enhances the chocolate flavor; using pure vanilla yields the best results.
Sourdough Starter – Adds unique tang while enhancing chocolate flavors; unfed or active starter works well.

For the Ganache

Heavy Whipping Cream – Used for making ganache; coconut cream can work for a dairy-free version.
Mini M&Ms – Adds a crunchy, nostalgic touch; consider chocolate-coated candies for a similar effect.

With these Sourdough Cosmic Brownie ingredients, you’re well on your way to creating a fudgy and delicious treat that will surely impress!

Step‑by‑Step Instructions for Sourdough Cosmic Brownies

Step 1: Preheat the Oven
Begin by preheating your oven to 160°C (320°F). While the oven warms up, prepare a 9″ x 9″ baking pan by greasing it lightly or lining it with parchment paper. This ensures easy removal of your Sourdough Cosmic Brownies once baked.

Step 2: Combine Dry Ingredients
In a large mixing bowl, whisk together the all-purpose flour, white sugar, cocoa powder, salt, and baking powder. This mixture will create a base full of rich chocolate flavor. Make sure there are no lumps, and enjoy the chocolatey aroma wafting as you blend these ingredients.

Step 3: Coat Chocolate Chips
Take your chocolate chips and toss them gently in the dry mixture until they’re well-coated. This step not only helps prevent the chips from sinking to the bottom but also adds a delightful burst of chocolaty goodness to each bite of your Sourdough Cosmic Brownies.

Step 4: Mix Wet Ingredients
In a separate bowl, combine the melted butter, eggs, vanilla extract, and sourdough starter. Whisk these ingredients together until thoroughly blended. The sourdough starter will enhance the brownies’ flavor, adding a unique tang that contrasts beautifully with the sweetness of the other ingredients.

Step 5: Combine Wet and Dry Mixtures
Pour the wet ingredients into the bowl with the dry mixture. Gently mix until just combined; your batter will be thick and luscious. Be careful not to overmix, as this could result in dense brownies rather than the fudgy texture we desire in our Sourdough Cosmic Brownies.

Step 6: Spread the Batter
Transfer the brownie batter into the prepared baking pan, using a spatula to spread it evenly. Aim for a smooth surface to ensure even baking. Place the pan in the preheated oven and bake your Sourdough Cosmic Brownies for 35 minutes, or until the edges are set.

Step 7: Check for Doneness
After 35 minutes, check the brownies for doneness using a toothpick. Insert it into the center; it should come out with moist crumbs clinging, but not wet batter. Look for a slightly crackly top that denotes a perfect bake for your rich Sourdough Cosmic Brownies.

Step 8: Cool Before Ganache
Once done, remove the pan from the oven and let the brownies cool in the pan for about an hour. This cooling period allows the brownies to set properly, making them easier to slice later on when you add the ganache.

Step 9: Prepare the Ganache
For the ganache, place the heavy whipping cream and semi-sweet chocolate chips in a microwave-safe bowl. Heat it in increments, stirring in between, until melted and glossy. This creamy ganache will provide a decadent topping that brings your Sourdough Cosmic Brownies to the next level.

Step 10: Assemble and Chill
Pour the glossy ganache over the cooled brownies, smoothing it out evenly. Sprinkle mini M&Ms on top for that classic cosmic touch! After assembling, refrigerate the brownies for two hours, allowing the ganache to set perfectly before slicing into irresistible squares.

Sourdough Cosmic Brownies: Fun Variations Galore

Feel free to make these brownies your own with creative twists and substitutions that excite your taste buds!

Nutty Delight: Swap mini M&Ms for chopped walnuts or pecans to add a crunchy texture and nutty flavor.
Peanut Butter Bliss: Create a savory twist by swirling in peanut butter or almond butter before baking. The nutty richness elevates each bite!
Flavored Chocolate: Use flavored chocolate chips, like mint or orange, for an unexpected zing that dances on your palate.
Sugar Substitute: Try using maple syrup or date sugar in place of white sugar for a unique sweetness that pairs beautifully with chocolate.
Lower Fat Option: Replace half the butter with unsweetened applesauce for a lighter version while keeping that fudgy texture intact.
Vegan Version: Swap eggs for flax eggs and choose dairy-free chocolate chips for a delicious, plant-based treat everyone can enjoy.
Spicy Kick: Add a pinch of cayenne pepper or chili powder to the batter for a surprising heat that complements the rich chocolate.
Coconut Twist: Incorporate unsweetened shredded coconut into the batter for added texture and a hint of tropical flavor.

Explore these variations to find your perfect match, and if you’re looking for more culinary inspirations, check out our guide on delicious chocolate desserts!

How to Store and Freeze Sourdough Cosmic Brownies

Room Temperature: Keep brownies in an airtight container at room temperature for up to 3 days. This will maintain their fudginess and rich flavor.

Fridge: For longer freshness, store Sourdough Cosmic Brownies in the fridge in an airtight container for up to a week. This helps preserve their moist texture and chocolate richness.

Freezer: Freeze brownies for 2–3 months in an airtight container or wrapped individually in plastic wrap. Thaw at room temperature for the best texture when you’re ready to indulge!

Reheating: If desired, reheat individual slices in the microwave for about 10-15 seconds to restore that just-baked fudgy goodness!

Make Ahead Options

These Sourdough Cosmic Brownies are a fantastic option for meal prep, allowing you to enjoy their deliciousness with minimal last-minute effort! You can prepare the brownie batter up to 24 hours in advance and refrigerate it (covering tightly to maintain moisture and prevent browning). Additionally, you can also whip up the ganache 1-2 days ahead and store it in the fridge; just warm it briefly before pouring it over the brownies for an easy finish. When ready to bake, simply spread the chilled batter into your prepared pan, bake as directed, and cool before adding the ganache. This prep-ahead strategy saves time on busy days while keeping your brownies just as fudgy and flavorful!

Expert Tips for Sourdough Cosmic Brownies

Gentle Mixing: Avoid dense brownies by mixing the dry and wet ingredients just until combined; overmixing can lead to tougher texture.
Chill Time: Letting the brownies cool overnight in the fridge intensifies the chocolate flavor, making them even more delectable.
Oven Adjustment: Different ovens can vary widely; keep an eye on your brownies to prevent overbaking, especially during the last few minutes.
Sourdough Starter Care: Use unfed or active sourdough starter, avoiding overly thick starter to achieve the best balance of flavor and texture in your brownies.
Flavor Variations: Feel free to swap out mini M&Ms for nuts or additional chocolate chips for a personalized touch in your Sourdough Cosmic Brownies.

What to Serve with Sourdough Cosmic Brownies?

Imagine the joy of enjoying these rich, fudgy delights alongside equally satisfying companions that elevate your dessert experience.

Vanilla Ice Cream: A classic pairing, creamy vanilla ice cream enhances the chocolate richness and balances flavors beautifully.
Whipped Cream: Light and airy, a dollop of freshly whipped cream adds a delightful contrast to the dense brownies, making each bite feel indulgent.
Fresh Berries: Juicy raspberries or strawberries offer a fresh, tart bite that cuts through the sweetness, adding a refreshing twist to your dessert.
Coffee: A flavorful cup of coffee brings out the chocolate notes while providing that comforting warmth, perfect for a cozy evening treat.
Chocolate Sauce: Drizzle a few teaspoons of warm chocolate sauce over the brownies for an extra layer of chocolaty goodness—it’s a chocolate lover’s dream!
Mint Tea: The soothing qualities of mint tea can cleanse the palate, making it the perfect accompaniment to these decadent brownies.
Nutty Trail Mix: For a delightful textural contrast, serve alongside a handful of nutty trail mix, adding crunch and energy to your sweets.
Almond Milk: A glass of cold almond milk is not only refreshing but also complements the chocolate flavor, making each bite more enjoyable.

Sourdough Cosmic Brownies Recipe FAQs

What type of sourdough starter should I use?
Absolutely! You can use either unfed or active sourdough starter for this recipe. Just be sure to avoid using a starter that is overly thick, as that can affect the moisture balance in the brownies. A slightly thinner, bubbly starter will enhance the chocolate flavor while maintaining the fudgy texture.

How should I store Sourdough Cosmic Brownies?
To store these decadent brownies, place them in an airtight container at room temperature for up to 3 days. If you want to keep them fresh for longer, you can refrigerate them for up to a week. Just ensure they’re well-sealed to prevent drying out; this helps keep that delightful fudginess intact!

Can I freeze Sourdough Cosmic Brownies?
Yes, you can freeze these brownies for up to 2-3 months! To do so, wrap them individually in plastic wrap or place them in an airtight container. Thaw at room temperature when ready to enjoy, and if you want that fresh-baked taste, pop a slice in the microwave for about 10-15 seconds!

What should I do if my brownies are too dense?
If you find your Sourdough Cosmic Brownies are too dense, there are a couple of tricks to consider. Firstly, make sure you handle the batter gently; mixing too much can lead to tough brownies. Secondly, check your baking powder’s freshness—it should be active for a proper rise. If you’ve ensured both and still find them dense, consider incorporating a little extra baking powder or reducing the flour slightly next time.

Are Sourdough Cosmic Brownies suitable for those with gluten allergies?
While these brownies are not explicitly marked as gluten-free, you can make them gluten-friendly by substituting the all-purpose flour with a gluten-free blend. Just ensure the rest of your ingredients don’t contain gluten and remember that the texture might vary slightly. Enjoy experimenting and finding the perfect alternative that works best for you!