Gluten Free Cosmic Brownies

If you grew up eating cosmic brownies from the store, you already know how good they are. That fudgy chocolate layer topped with a shiny ganache and colorful candy pieces is hard to forget.

Well, today I’m sharing my recipe for gluten free cosmic brownies that taste just as good as the ones you remember. Maybe even better, since they’re homemade.

These brownies are rich, fudgy, and covered with a smooth chocolate ganache and those classic candy coated chocolate chips on top. They look and taste just like the real thing.

The recipe is 100% gluten free, so if you’re avoiding gluten but still want a fun and indulgent dessert, this one is for you.

You only need a few basic ingredients to pull these off, and the whole process is really simple. No fancy equipment or complicated steps needed.

Why You’ll Love This Recipe

They Taste Just Like the Real Thing – If you miss those iconic Little Debbie Cosmic Brownies, this gluten free version nails that same fudgy, chocolatey flavor you remember from childhood lunchboxes.

Super Fudgy Texture – The combo of melted butter, two types of sugar, and cocoa powder creates an ultra-dense, fudgy brownie that practically melts in your mouth. These are not cakey at all.

That Ganache Topping Is Everything – A layer of rich chocolate ganache made with semi-sweet chocolate chips and heavy cream takes these brownies to a whole new level of indulgence.

Candy Coated Chocolate Chips on Top – Those colorful little candy coated chocolate chips are what make Cosmic Brownies so fun and nostalgic. They add a tiny crunch and make the brownies look amazing.

Ingredients

For the Brownies

• 3/4 cup Unsalted Butter Melted
• 1 cup Granulated Sugar
• 2/3 cup Light Brown Sugar
• 2 large Eggs
• 1 tsp Vanilla Extract
• 3/4 cup Cocoa Powder
• 3/4 cup Gluten Free All-Purpose Flour
• 1 tbsp Cornstarch
• 1/2 tsp Salt

For the Ganache

• 1 cup Semi-Sweet Chocolate Chips
• 1/3 cup Heavy Cream
• 2 tbsp Candy Coated Chocolate Chips

How to Make

Step 1

Preheat the oven to 350F and line a 9×9 inch baking pan with parchment paper.

Step 2

In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until well combined. Whisk in the eggs and vanilla extract.

Step 3

Fold in the cocoa powder, gluten free flour, cornstarch, and salt until just combined. The batter will be thick.

Step 4

Spread the batter evenly into the prepared pan. Bake for 20-25 minutes. Do not overbake. Let the brownies cool completely in the pan.

Step 5

Make the ganache by heating the heavy cream in a small saucepan until just simmering. Pour over the chocolate chips, let sit for 5 minutes, then stir until smooth.

Step 6

Pour the ganache evenly over the cooled brownies, sprinkle with candy-coated chocolate chips, and chill in the fridge for 1 hour before slicing.

Helpful Tips

Use a Good Gluten Free Flour Blend

Not all gluten free flours work the same way. You want a gluten free all-purpose blend that contains xanthan gum, since that helps hold the brownies together the way gluten normally would.

If your flour blend doesn’t include xanthan gum, add about 1/4 teaspoon to the dry ingredients. Without it, the brownies can turn out crumbly and fall apart when you try to slice them.

Bob’s Red Mill 1-to-1 and King Arthur Measure for Measure are two blends that work well here and already have xanthan gum in them.

Melt the Butter and Let It Cool Slightly

You want the butter fully melted, but don’t pour it into the sugar while it’s screaming hot. If it’s too hot, it can start to cook the eggs when you add them in the next step, and that gives you a weird scrambled texture in the batter.

After melting the butter, just let it sit for about 3-5 minutes. It should still be warm and pourable, just not piping hot. This small step makes a real difference in how smooth your batter turns out.

Don’t Skip the Cornstarch

The cornstarch in this recipe is doing more than you think. It helps give the brownies that signature fudgy, slightly chewy texture that cosmic brownies are known for. It also helps make up for the structure that gluten free flour sometimes lacks.

Make sure you measure it with a level tablespoon. Too much cornstarch and the brownies can taste starchy, too little and they won’t have that dense, fudgy bite.

You Might Also Like

• Gluten Free Brownie Cheesecake Swirl
• Gluten Free Caramel Pecan Turtle Bars
• Gluten Free Molten Lava Cakes
• Gluten Free Peanut Butter Swirl Brownies
• Gluten Free Salted Caramel Brownies

Frequently Asked Questions

What gluten free flour works best for these cosmic brownies?

A good gluten free all-purpose flour blend is the best choice here because it behaves the most like regular flour. Brands like Bob’s Red Mill 1-to-1 or King Arthur Measure for Measure work really well in this recipe.

Try to pick a blend that already contains xanthan gum, since that helps hold everything together and gives the brownies that classic fudgy texture without crumbling apart.