• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
My Fast Recipe | Quick, Delicious, and Easy Recipe

My Fast Recipe | Quick, Delicious, and Easy Recipe

  • Home
  • Recipe Index
  • Desserts
  • Dinner
  • Soup
  • Contact
  • About
My Fast Recipe | Quick, Delicious, and Easy Recipe
  • Home
  • Recipe Index
  • Desserts
  • Dinner
  • Soup
  • Contact
  • About
Home » Recipe Index » Cosmic Brownie Cookies

Cosmic Brownie Cookies

July 1, 2025 by AimeeDesserts

Jump to Recipe·Print Recipe

Say hello to this upgraded cookie version of your favorite childhood treat! These Cosmic Brownie Cookies are rich chocolate cookies with a shiny chocolate ganache frosting. They are topped with the traditional cosmic brownie chips, making them a chocolate lover’s heaven. Perfect for birthdays, bake sales, or a cozy night in, these cookies will evoke nostalgia while satisfying your sweet tooth.

Why You’ll Love This Recipe

  • Decadent Flavor: These cookies combine the richness of chocolate with a delightful ganache, creating an irresistible treat.
  • Easy to Make: With simple ingredients and straightforward steps, anyone can whip up these cookies in no time.
  • Versatile Treat: Serve them at parties, as gifts, or enjoy them as an indulgent snack at home!
  • Customizable Toppings: Feel free to add nuts or other sprinkles for an extra twist on the classic flavor.
  • Perfect for Sharing: With 20 servings, these cookies are great for sharing with friends and family.

Tools and Preparation

Before diving into the recipe, gather the necessary tools and equipment to make your Cosmic Brownie Cookies. Having everything ready will streamline your baking experience.

Essential Tools and Equipment

  • Mixing bowls
  • Measuring cups and spoons
  • Whisk
  • Baking sheet
  • Parchment paper
  • Rubber spatula

Importance of Each Tool

  • Mixing bowls: Essential for combining ingredients thoroughly to create a smooth cookie dough.
  • Baking sheet: Provides a flat surface for even baking of your cookies.
  • Parchment paper: Prevents sticking and makes for easy clean-up after baking.

Ingredients

For the Cookie Dough

  • 1 cup salted butter (melted)
  • 1 ¼ cup granulated sugar
  • ¾ cup light brown sugar
  • 2 tsp vanilla extract
  • 2 eggs (room temperature)
  • 1 ⅔ cups all-purpose flour
  • 2 tsp corn starch
  • 1 cup cocoa powder (I prefer dark chocolate cocoa powder, but use whatever you prefer!)
  • 1 tsp baking soda
  • ½ tsp kosher salt

For the Ganache Frosting

  • 8 oz semi-sweet chocolate (I like to use baking chocolate bars but you can use chocolate chips as well!)
  • ¾ cup heavy cream
  • ½ tsp vanilla extract

For Topping

  • 1 cup cosmic brownie sprinkles

How to Make Cosmic Brownie Cookies

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C) so it’s ready when you’re finished preparing your dough.

Step 2: Prepare Your Baking Sheet

Line a baking sheet with parchment paper. This will help prevent sticking and make clean-up easier.

Step 3: Mix the Wet Ingredients

In a mixing bowl, combine melted butter, granulated sugar, brown sugar, and vanilla extract. Whisk until smooth. Add in the eggs one at a time, mixing well after each addition.

Step 4: Combine Dry Ingredients

In another bowl, whisk together all-purpose flour, corn starch, cocoa powder, baking soda, and kosher salt until evenly mixed.

Step 5: Combine Wet and Dry Mixtures

Gradually add the dry mixture into the wet ingredients. Stir until just combined; be careful not to overmix.

Step 6: Scoop and Bake

Using a cookie scoop or tablespoon, drop dough onto the prepared baking sheet. Leave enough space between each cookie as they will spread while baking. Bake in preheated oven for about 9 minutes or until edges are set but centers are still soft.

Step 7: Prepare Ganache Frosting

While cookies cool, heat heavy cream in a saucepan until just boiling. Pour over chopped semi-sweet chocolate in a bowl. Let it sit for a minute before stirring until smooth. Add vanilla extract and mix well.

Step 8: Frost Cookies

Once cookies have cooled completely, spread ganache on top of each cookie using a rubber spatula. Top with cosmic brownie sprinkles before serving!

Enjoy your delicious Cosmic Brownie Cookies! They are sure to impress anyone who takes a bite!

How to Serve Cosmic Brownie Cookies

These Cosmic Brownie Cookies are not just delicious on their own; they can be served in various fun and creative ways. Here are some great ideas to enjoy these cookies!

Cookie Sandwiches

  • Create a delightful sandwich by placing a scoop of your favorite ice cream between two Cosmic Brownie Cookies.

Coffee Pairing

  • Serve these cookies alongside a hot cup of coffee or espresso for a perfect afternoon treat.

Dessert Platter

  • Arrange the cookies on a dessert platter with other sweet treats, like brownies or cupcakes, for a festive occasion.

Milk Dipping

  • Enjoy the cookies with a cold glass of milk. The creamy texture enhances the chocolate flavor beautifully.

Gift Packaging

  • Package the cookies in a decorative box as a sweet gift for friends or family. They’ll love this nostalgic treat!
70% OFF
Professional Knife Full View
BLACK FRIDAY LIMITED EDITION

Professional Hand-Forged Chef Knife

The secret tool for the perfect cuts in this recipe. This hand-forged Japanese steel knife is ultra-sharp and perfectly balanced for effortless cooking.

  • ✦ Precision Hand-Forged Steel
  • ✦ Razor Sharp & Durable
  • ✦ Ergonomic Wood Handle
CLAIM 70% DISCOUNT NOW

🔥 Only 14 units left at this price!

Cosmic this …

How to Perfect Cosmic Brownie Cookies

To elevate your baking game, follow these handy tips for making the best Cosmic Brownie Cookies.

  • Chill the dough – Refrigerate the cookie dough for at least 30 minutes before baking. This helps prevent spreading and keeps them thick.
  • Use quality chocolate – Opt for high-quality cocoa powder and chocolate for richer flavor. Dark chocolate cocoa powder will enhance the overall taste.
  • Check oven temperature – Ensure your oven is preheated correctly. An oven thermometer can help confirm accurate temperatures.
  • Don’t overbake – Keep an eye on them while baking. Remove the cookies when they look slightly underbaked to maintain soft centers.

Best Side Dishes for Cosmic Brownie Cookies

Pairing side dishes with your Cosmic Brownie Cookies can create an even more enjoyable experience. Here are some fantastic options:

  1. Vanilla Ice Cream – A classic pairing that complements the rich chocolate flavor perfectly.
  2. Chocolate Milkshake – Blend up a thick milkshake to dip your cookies into for an indulgent treat.
  3. Fresh Berries – Serve with strawberries or raspberries to add a refreshing contrast to the sweetness of the cookies.
  4. Whipped Cream – Top off your cookies with a dollop of whipped cream for added creaminess.
  5. Nutty Trail Mix – A crunchy nut mix can provide great texture alongside the soft cookies, creating a delightful combination.
  6. Fruit Salad – A light fruit salad balances out the richness of the cookies, making it an excellent side dish option.

Common Mistakes to Avoid

When making Cosmic Brownie Cookies, it’s easy to overlook a few key steps. Here are some common mistakes and how to avoid them.

  • Skipping the Room Temperature Eggs: Using cold eggs can affect the texture of your cookies. Always use room temperature eggs for better incorporation into the batter.
  • Overmixing the Dough: Mixing too long can lead to tough cookies. Mix just until combined for a soft and chewy texture.
  • Not Measuring Flour Correctly: Too much flour can make cookies dry. Use the spoon-and-level method for accurate measurement.
  • Ignoring Chilling Time: Skipping chilling time can result in flat cookies. Chill the dough for at least 30 minutes before baking for perfect results.
  • Using Low-Quality Chocolate: Poor chocolate affects flavor. Always use good quality chocolate for both the cookie and ganache.

Storage & Reheating Instructions

Refrigerator Storage

  • Store Cosmic Brownie Cookies in an airtight container.
  • They will last up to 5 days in the refrigerator.
  • Keep the cookies layered with parchment paper to avoid sticking.

Freezing Cosmic Brownie Cookies

  • Freeze cookies in an airtight container or freezer bag.
  • They can be frozen for up to 3 months.
  • Allow cookies to cool completely before freezing.

Reheating Cosmic Brownie Cookies

  • Oven: Preheat to 350°F (175°C) and warm cookies for about 5 minutes.
  • Microwave: Heat one cookie at a time on medium power for about 10-15 seconds.
  • Stovetop: Place a cookie in a skillet over low heat for a minute or two, covering it with a lid.

Frequently Asked Questions

If you have more questions about making Cosmic Brownie Cookies, you’re not alone! Here are some commonly asked questions.

How do I achieve a shiny ganache on my Cosmic Brownie Cookies?

To achieve a shiny ganache, ensure your heavy cream is hot enough before pouring it over the chocolate. Stir until smooth for that perfect sheen.

Can I customize my Cosmic Brownie Cookies?

Absolutely! Feel free to add nuts, different types of chocolate chips, or even swap out the sprinkles for other toppings you enjoy.

What’s the best way to store leftover Cosmic Brownie Cookies?

Store them in an airtight container at room temperature or refrigerate them for longer freshness.

How long do Cosmic Brownie Cookies stay fresh?

When stored properly, these cookies can stay fresh for up to 5 days in an airtight container or up to 3 months if frozen.

Final Thoughts

These Cosmic Brownie Cookies combine nostalgia with deliciousness, making them ideal for any occasion. With their rich chocolate flavor and customizable toppings, they are sure to please everyone. Don’t hesitate to experiment with different mix-ins and flavors!

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Cosmic Brownie Cookies

Cosmic Brownie Cookies


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

  • Author: Aimee
  • Total Time: 29 minutes
  • Yield: Approximately 20 servings 1x
Print Recipe

Description

Indulge in the nostalgia of childhood with these Cosmic Brownie Cookies! Combining rich chocolate cookies with a glossy ganache frosting and topped with traditional cosmic brownie chips, this treat is a chocolate lover’s dream come true. Whether you’re celebrating a birthday, hosting a bake sale, or enjoying a cozy night in, these cookies are sure to evoke fond memories while satisfying your sweet tooth. Easy to make and perfect for sharing, they are guaranteed to impress friends and family alike!


Ingredients

Scale
  • 1 cup salted butter (melted)
  • 1 ¼ cups granulated sugar
  • ¾ cup light brown sugar
  • 2 tsp vanilla extract
  • 2 eggs (room temperature)
  • 1 ⅔ cups all-purpose flour
  • 2 tsp corn starch
  • 1 cup cocoa powder
  • 1 tsp baking soda
  • ½ tsp kosher salt
  • 8 oz semi-sweet chocolate (for ganache)
  • ¾ cup heavy cream
  • ½ tsp vanilla extract
  • 1 cup cosmic brownie sprinkles

Instructions

  1. Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
  2. In a bowl, whisk together melted butter, granulated sugar, brown sugar, and vanilla until smooth. Add eggs one at a time, mixing well.
  3. In another bowl, whisk together flour, corn starch, cocoa powder, baking soda, and salt. Gradually add dry ingredients to wet ingredients until just combined.
  4. Scoop dough onto prepared baking sheet, leaving space between cookies. Bake for about 9 minutes or until edges are set but centers remain soft.
  5. Prepare ganache by heating heavy cream and pouring it over chopped chocolate. Let sit before stirring until smooth.
  6. Once cookies have cooled completely, frost them with ganache and sprinkle cosmic brownie chips on top.
  • Prep Time: 20 minutes
  • Cook Time: 9 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 cookie (40g)
  • Calories: 200
  • Sugar: 14g
  • Sodium: 90mg
  • Fat: 10g
  • Saturated Fat: 5g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 26g
  • Fiber: 2g
  • Protein: 3g
  • Cholesterol: 30mg

Did you make this recipe?

Share a photo and tag us — we can't wait to see what you've made!

« Previous Post
Delicious Honey Oatmeal Cookies
Next Post »
Cheesy French Onion Meatballs

If you enjoyed this…

Soft and Chewy Chocolate Chip Cookies
Desserts

Soft and Chewy Chocolate Chip Cookies

Desserts

Mandarin Orange Jello Salad

White Chocolate Raspberry Tiramisu: A Decadent Layered Delight
Desserts

White Chocolate Raspberry Tiramisu: A Decadent Layered Delight

Reader Interactions

Leave a Comment Cancel reply

Helpful comments include feedback on the post or changes you made.

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

Primary Sidebar

Browse by Categories

DessertsDessertsDinnerDinnerSoupSoup
Pistachio Pudding Bread

Pistachio Pudding Bread

Dark Chocolate Espresso Cake with Brown Butter Frosting

Dark Chocolate Espresso Cake with Brown Butter Frosting

Cookie Dough Frozen Yogurt Bites

Cookie Dough Frozen Yogurt Bites

  • About
  • Contact
  • Privacy Policy
  • Cookies Policy
  • DMCA Policy
  • GDPR
  • Terms and Conditions

© 2025 My Fast Recipe | ALL RIGHTS RESERVED