Cosmic Brownies Recipe

Heavenly Homemade Cosmic Brownies Recipe: Sweet Galaxy Bites

Chocolate lovers rejoice as these nostalgic cosmic brownies bring back sweet childhood memories.

These decadent bars packed with cosmic brownies recipe magic will transport you straight to lunchbox bliss.

Rich, fudgy, and loaded with colorful sprinkles, these treats capture pure dessert perfection.

Each bite delivers intense chocolate flavor and a delightful texture that melts in your mouth.

The simple ingredients create an indulgent experience that feels both familiar and exciting.

Dense chocolate base topped with vibrant rainbow chips makes these brownies irresistibly fun.

Bake a batch and watch faces light up with pure sugary delight.

Cosmic Brownies: Nostalgic Highlights

  • Whip Up Nostalgic Treats: Recreate the beloved childhood favorite cosmic brownies with a homemade twist that tastes even better than the packaged version.
  • Customize with Ease: Swap out rainbow chips for sprinkles, chocolate chips, or nuts to personalize these decadent brownies and make them your own signature dessert.
  • Master Quick Baking: Achieve bakery-quality brownies with simple ingredients and straightforward steps that require minimal baking experience and deliver maximum chocolatey satisfaction.
  • Crowd-Pleasing Dessert: Perfect for potlucks, school events, birthday parties, or casual gatherings where you want to impress friends and family with a rich, indulgent chocolate treat.

What Goes Into Cosmic Brownies

Brownie Base:
  • All-Purpose Flour: A classic pantry staple that provides structure to the brownies.
  • Granulated Sugar, Brown Sugar: Sweet ingredients that add richness and deep flavor to the dessert.
  • Eggs: Binding agent that helps create a smooth and cohesive brownie texture.
Chocolate Components:
  • Unsweetened Chocolate: The core ingredient that delivers intense chocolate flavor.
  • Cocoa Powder: Enhances the deep chocolate taste and contributes to the dark color.
  • Chocolate Chips: Used for creating a smooth and glossy ganache topping.
Moisture and Flavor Enhancers:
  • Butter, Vegetable Oil: Ingredients that keep the brownies moist and tender.
  • Vanilla Extract: Adds a warm, complex flavor to complement the chocolate.
  • Cornstarch, Salt: Helps create a soft texture and balances the sweetness.
Topping:
  • Heavy Cream: Used to create a silky ganache for the brownie surface.
  • Candy Sprinkles: Colorful decorative element that adds a fun, nostalgic touch.

Directions for Cosmic Brownies at Home

Step 1: Fire Up The Oven

Crank the oven to a toasty 350°F.

Grab your 9×9 baking pan and give it a cozy parchment paper lining.

Spritz the paper with nonstick spray to ensure easy brownie removal.

Step 2: Whip Up The Base

Grab your mixer and blend sugars and eggs for 3 minutes until they transform into a fluffy cloud.

Drizzle in melted butter, oil, vanilla, and melted chocolate.

Mix until everything becomes best friends.

Step 3: Blend Dry Ingredients

Combine your dry squad:
  • All-purpose flour
  • Cocoa powder
  • Cornstarch
  • Salt

Gently fold these dry ingredients into your wet mixture.

Stir just until everything is incorporated – no overmixing allowed!

Step 4: Bake To Perfection

Pour the batter into your prepared pan.

Slide into the preheated oven and bake for 33-37 minutes.

You’re looking for moist crumbs when you insert a toothpick.

Once done, let the brownies cool completely.

Step 5: Create Silky Ganache

Heat cream until steamy.

Pour over chocolate chips and let them hang out for 2 minutes.

Stir until the mixture becomes gloriously smooth and glossy.

Step 6: Decorate And Chill

Spread that luxurious ganache over your cooled brownies.

Sprinkle with colorful candy pieces.

Pop the pan in the refrigerator to help the ganache set and get wonderfully firm.

Tips for Colorful, Soft Brownies

  • Beat sugars and eggs for the full 3 minutes to create a light, airy texture that makes brownies extra fluffy and tender.
  • Use high-quality dark or milk chocolate chips for ganache to customize the richness and depth of chocolate flavor.
  • Check brownies at 33 minutes and use the moist crumb test to avoid overcooking, ensuring a fudgy, soft center.
  • Allow eggs and butter to reach room temperature before mixing to help ingredients blend more smoothly and create a consistent batter.
  • Use parchment paper overhang to lift brownies out of pan, then slice with a clean, warm knife for neat, clean edges.

Cosmic Brownie Variations for Kids and Adults

  • Gluten-Free Cosmic Brownies: Replace wheat flour with almond flour or gluten-free flour blend for celiac or gluten-sensitive bakers.
  • Vegan Cosmic Brownies: Swap eggs with flax eggs, use dairy-free chocolate chips, and replace butter with coconut oil for plant-based version.
  • Low-Sugar Cosmic Brownies: Substitute granulated sugar with monk fruit sweetener or stevia, reducing overall sugar content while maintaining rich chocolate flavor.
  • Nut-Free Cosmic Brownies: Skip candy toppings with nuts, use sprinkles or chocolate chips as alternative decorative elements for those with nut allergies.

Serving Ideas for Cosmic Brownies

  • Nostalgic Lunchbox Treat: Pack these brownies as a delightful throwback to childhood school lunches, reminiscent of classic Little Debbie snacks.
  • Rainbow Sprinkle Party: Customize with colorful rainbow sprinkles for a fun, festive touch that makes these brownies perfect for birthday celebrations or kids' gatherings.
  • Decadent Dessert Pairing: Serve alongside vanilla ice cream or with a cold glass of milk to elevate the rich chocolate experience and create a luxurious dessert moment.
  • Coffee Shop Companion: Slice into smaller squares and enjoy with an afternoon espresso or cappuccino for a sophisticated chocolate indulgence that complements your favorite coffee drink.

How to Store Cosmic Brownies the Right Way

  • Store cosmic brownies in an airtight container in the refrigerator for up to 5 days. Cold storage helps maintain their fudgy texture and prevents the ganache from melting.
  • Wrap individual brownies tightly in plastic wrap, then place in a freezer-safe container. They'll stay delicious for 2-3 months when frozen. Thaw at room temperature for 30 minutes before enjoying.
  • If serving within 1-2 days, keep brownies covered at room temperature. Place a sheet of parchment paper between layers to prevent sticking and maintain their perfect shape.
  • Add a paper towel to the storage container to absorb excess moisture and keep the brownies from becoming soggy. This trick helps preserve their incredible texture and rich chocolate flavor.

FAQs

  • What are the key ingredients that make these brownies unique?

The recipe uses melted chocolate, both butter and oil, and a combination of cocoa powder and cornstarch for extra richness and fudgy texture.

  • Can I use different types of chocolate for this recipe?

Milk, dark, or semi-sweet chocolate chips work well for the ganache topping, depending on your preference for sweetness.

  • Why does the recipe recommend beating sugars and eggs for 3 minutes?

This process helps create a light, fluffy texture and incorporates air into the batter, resulting in a more tender brownie.

  • Do I need any special equipment to make these brownies?

Just a 9×9 baking pan, parchment paper, mixing bowls, and standard baking tools are required for this recipe.

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Cosmic Brownies Recipe

Cosmic Brownies Recipe


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4.5 from 28 reviews

  • Total Time: 52 minutes
  • Yield: 16 1x

Description

Indulgent Cosmic Brownies bring nostalgic school lunch memories with rich chocolate and colorful sprinkle magic. Fudgy, dense squares packed with childhood delight promise sweet comfort that transports you straight back to carefree lunch moments.


Ingredients

Scale

Main Ingredients:

  • 1 cup all-purpose flour
  • 1 cup unsweetened cocoa powder
  • 3.5 ounces (100 grams) semi-sweet chocolate bar, melted
  • 1 cup semi-sweet chocolate chips
  • 1 1/2 cups white granulated sugar
  • 3 large eggs, room temperature
  • 1/2 cup unsalted butter, melted

Liquid and Fat Ingredients:

  • 1/2 cup canola or vegetable oil
  • 1/2 cup heavy cream
  • 1 teaspoon pure vanilla extract

Binding and Seasoning Ingredients:

  • 1 egg yolk, room temperature
  • 1/2 cup powdered sugar
  • 1 tablespoon cornstarch
  • 1 teaspoon salt
  • Rainbow candy coated chocolates for topping

Instructions

  1. Prepare the oven to 350°F and line a 9×9-inch baking pan with parchment paper, lightly coating with nonstick spray.
  2. Whip sugars and eggs for 3 minutes until light and airy, then incorporate melted butter, oil, vanilla extract, and melted chocolate into the mixture.
  3. Sift together flour, cocoa powder, cornstarch, and salt, gently folding into the wet ingredients until just combined.
  4. Transfer batter to prepared pan, baking for 33-37 minutes until a toothpick reveals moist crumbs when inserted. Allow brownies to cool completely at room temperature.
  5. Create ganache by pouring hot cream over chocolate chips, letting it rest for 2 minutes before stirring until silky and uniform.
  6. Generously spread ganache across the cooled brownies, then sprinkle with colorful candy decorations. Refrigerate briefly to help ganache set firmly.

Notes

  • Switch up the chocolate type for different flavor profiles, like dark or milk chocolate for unique taste variations.
  • Use gluten-free flour blend to make these brownies suitable for those with wheat sensitivities.
  • Add a pinch of espresso powder to enhance the chocolate’s depth without making it taste like coffee.
  • Try alternative toppings like crushed nuts or sea salt for a gourmet twist on the classic cosmic brownie design.
  • Prep Time: 15 minutes
  • Cook Time: 37 minutes
  • Category: Desserts, Snacks
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 16
  • Calories: 250
  • Sugar: 18 g
  • Sodium: 150 mg
  • Fat: 14 g
  • Saturated Fat: 8 g
  • Unsaturated Fat: 6 g
  • Trans Fat: 0 g
  • Carbohydrates: 30 g
  • Fiber: 2 g
  • Protein: 3 g
  • Cholesterol: 40 mg
Lena Martinez

Lena Martinez

Contributing Writer & Culinary Educator

Expertise

Southwestern and Latin American cuisines, Vegetarian and plant-based recipe development, Culinary education and community outreach ​

Education

Santa Fe Community College, Santa Fe, NM
Certificate in Culinary Arts

Emphasized Southwestern cuisine and sustainable cooking practices


Lena grew up surrounded by the colors, spices, and traditions of the Southwest – flavors that sparked her love for bold, honest cooking. After earning her Culinary Arts certificate at Santa Fe Community College, she made it her mission to teach home cooks how to create flavorful, plant-powered meals without the fuss.
Her recipes are packed with vibrant ingredients, simple steps, and the kind of heart that turns a regular meal into something you’ll want to share. Outside the kitchen, Lena spends her time wandering farmers’ markets, trading family recipes, and helping young chefs find their voice through food.

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