Cosmic Brownies Copycat

Cosmic Brownies Copycat

Indulge, in the joy of baking by trying our recipe for Cosmic Brownies Copycat. These delightful treats, inspired by a childhood favorite bring the magic of fudgy chocolatey brownies into your own kitchen. With each mouthwatering bite, you’ll experience the balance of chewiness and gooeyness. What makes these brownies truly special is the chocolate frosting and the playful addition of rainbow chips creating both an appealing and deliciously satisfying treat. Whether you decide to share them with loved ones or indulge in memories from the past these cosmic brownies will take your taste buds on an adventure through flavors and fun.



For the brownies:

10 tbsp (142 grams) unsalted butter

1 c. (200 grams) granulated sugar

1/3 c. (67 grams) packed light brown sugar

3/4 c. + 2 tbsp (88 grams) unsweetened cocoa powder, sifted

1/2 tsp vanilla extract

2 large eggs plus 1 egg yolk

1 tbsp corn syrup

2/3 c. (85 grams) all-purpose flour

1 tbsp cornstarch

1/4 tsp salt

For the frosting:

1/2 c. heavy cream

1 1/2 c. (255 grams) semisweet chocolate chips

Wilton Rainbow Chip Crunch or mini M&M’s, sprinkles, or other candy for decoration


Get ready to make some brownies! Start by preheating your oven to 350°F (175°C). Take an 8 by 8-inch metal baking pan and line it with parchment or foil. Then lightly coat it with cooking spray.

Now let’s prepare the brownie batter. In a bowl that’s safe for use in the microwave melt the butter for approximately 90 seconds on high power. Next add in the granulated sugar, brown sugar and sifted cocoa powder. If it’s still too hot allow it to cool slightly before adding the vanilla extract, eggs, egg yolk and corn syrup. Stir everything together until well combined. After that incorporate the all-purpose flour, cornstarch and salt into the mixture; stir until combined. The batter will be thick but chocolatey! Pour this concoction into your pan.

It’s time to bake these brownies to perfection! Place your brownie masterpiece into the oven. Let it bake for around 25 minutes. You’ll know they’re done when the edges are set. The center is still gooey. Once baked thoroughly remove them from the oven and allow them to cool completely while they’re still in the pan.

Moving on to making some frosting; Take a bowl that’s safe for use, in the microwave and heat up heavy cream on high power for about 1 minute. Add semisweet chocolate chips to it. Let them sit undisturbed for 3 minutes before stirring until smooth.

Spread the chocolate ganache evenly over your brownies. Next, you can add a burst of color and flavor by sprinkling Wilton Rainbow Chip Crunch, M&Ms or your preferred candy toppings.

To allow the frosting to set beautifully chill your brownie pan in the refrigerator for 1 to 2 hours. Once ready cut these creations into 16 squares. These brownies are best enjoyed when chilled and make for a perfect dessert, on any occasion.


To assemble a gluten-free rendition of this Cosmic Brownies Copycat recipe you’ll need to switch out the normal all-purpose flour with a high-quality gluten-free flour blend. Make certain that the gluten-free flour blend you choose contains xanthan gum or another suitable binder to replicate the texture of gluten.

It’s also crucial to check that your cornstarch and corn syrup are marked as gluten-free since some brands might process these ingredients in facilities that handle gluten.

By making these substitutions you can savor the satisfying Cosmic Brownies while catering to a gluten-free diet.