There’s something magical about the nostalgic taste of Little Debbie Cosmic Brownies—the chewy texture, the fudgy frosting, and, of course, those colourful candy-coated chocolate chips. If you’re craving a taste of childhood but can’t make it to the store, fear not! We’ve got you covered with a homemade version of this beloved treat. With just a few simple ingredients and a bit of patience, you can recreate the magic of Little Debbie Cosmic Brownies right in your own kitchen.
What Makes Little Debbie Cosmic Brownies Special?
Little Debbie Cosmic Brownies are no ordinary brownie. Colourful rainbow chocolate chips set them apart and give them their signature cosmic look. These sweet, crunchy candies add colour and a burst of flavour that elevate these brownies to a whole new level. Recreating this special touch is key to capturing the essence of a Little Debbie Cosmic Brownie.
Ingredients
- 1/2 cup (1 stick) unsalted butter
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/3 cup unsweetened cocoa powder
- 1/2 cup all-purpose flour
- 1/4 teaspoon salt
- 1/4 teaspoon baking powder
- 1 cup rainbow chocolate chips
For the ganache:
-
½ cup heavy cream
- 7 ounces bittersweet chocolate
- Pinch of salt
- Colourful candies or sprinkles, for decorating
Instructions:
- Preheat your oven to 350°F and grease a 9×9 inch baking pan.
- In a small saucepan, melt the butter over low heat.
- Remove the pan from the heat and stir in the sugar, eggs, and vanilla until well combined.
- Add the cocoa powder, flour, salt, and baking powder, and stir until smooth.
- Fold in the rainbow chocolate chips until evenly distributed.
- Pour the batter into the prepared baking pan and spread it out evenly.
- Bake for 20-25 minutes, or until a toothpick inserted into the centre comes out clean.
- Allow the brownies to cool completely before cutting into squares.
Making the Ganache
In a small saucepan, heat the heavy cream until it just begins to simmer. Place the chocolate chips in a heatproof bowl and pour the hot cream over the chocolate. Let it sit for a minute before stirring until smooth and glossy.

Once your brownies are cool and cut into squares, it’s time to enjoy the fruits of your labour
FAQ
Can I use different types of sprinkles for these brownies?
Yes, you can use any type of sprinkles you like to customise these cosmic brownies to your preference.
How should I store these brownies?
To keep your cosmic brownies fresh, store them in an airtight container at room temperature for up to 5 days.
Can I freeze these brownies?
Yes, you can freeze these brownies in an airtight container for up to 3 months. Simply thaw them at room temperature before serving.

Little Debbie Cosmic Brownies
Ingredients
- 1/2 cup 1 stick unsalted butter
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/3 cup unsweetened cocoa powder
- 1/2 cup all-purpose flour
- 1/4 teaspoon salt
- 1/4 teaspoon baking powder
- 1 cup rainbow chocolate chips
For the ganache:
- ½ cup heavy cream
- 7 ounces bittersweet chocolate
- Pinch of salt
- Colourful candies or sprinkles for decorating
Instructions
Instructions:
- Preheat your oven to 350°F and grease a 9×9 inch baking pan.
- In a small saucepan, melt the butter over low heat.
- Remove the pan from the heat and stir in the sugar, eggs, and vanilla until well combined.
- Add the cocoa powder, flour, salt, and baking powder, and stir until smooth.
- Fold in the rainbow chocolate chips until evenly distributed.
- Pour the batter into the prepared baking pan and spread it out evenly.
- Bake for 20-25 minutes, or until a toothpick inserted into the centre comes out clean.
- Allow the brownies to cool completely before cutting into squares.
Making the Ganache
- In a small saucepan, heat the heavy cream until it just begins to simmer. Place the chocolate chips in a heatproof bowl and pour the hot cream over the chocolate. Let it sit for a minute before stirring until smooth and glossy.