The Best Fudgy Cosmic Brownies Recipe
The BEST homemade fudgy cosmic brownies, complete with a dark chocolate ganache and classic M&M topping. These brownies are ultra-rich, dense, and have that signature crinkly top—better than the store-bought version!
- Prep Time: 25 minutes
- Cook Time: 20-23 minutes
- Total Time: ≈2 hours 48 minutes
- Yield: 16 brownies
- Category: Dessert, Brownies
- Cuisine: American
Ingredients
For the Brownie Batter:
– 3/4 stick (6 tablespoons / 85g) unsalted butter, cubed
– 4 oz (≈2/3 cup) chopped semisweet chocolate
– 1/4 cup oil (vegetable or canola)
– 1/3 cup (40g) powdered sugar
– 3/4 cup (144g) granulated sugar
– 2 large eggs, room temperature
– 1 teaspoon vanilla extract
– 1/4 cup (27g) cocoa powder
– 1/2 cup (60g) all-purpose flour
– 1/2 teaspoon salt
For the Ganache Topping:
– 4 oz (≈2/3 cup) chopped semisweet chocolate
– 1/3 cup heavy cream
– 4 tablespoons mini M&Ms
– 2 tablespoons rainbow sprinkles
Equipment:
– 9×9 inch square pan (or 8×8 for thicker brownies)
– Parchment paper
– Whisk and rubber spatula
– Microwave-safe bowls
Instructions
1. Preheat oven to 350°F (177°C). Line a 9×9-inch square pan with parchment paper, creating a sling for easy removal.
2. In a large microwave-safe bowl, add the chopped semisweet chocolate. Microwave in 15–20 second intervals, stirring each time, until partially melted. Add cubed butter and continue microwaving until smooth and glossy.
3. Add oil and stir until combined. Stir in powdered sugar and granulated sugar until fully mixed.
4. Whisk in eggs and vanilla extract vigorously for 1–2 minutes. This step helps create the shiny, crinkly top.
5. Add cocoa powder, flour, and salt. Fold gently with a spatula until just combined—do not overmix.
6. Spread the batter evenly in the prepared pan and bake for 20–23 minutes until the center is mostly set but slightly fudgy.
7. Cool brownies completely for about 1 hour at room temperature before adding ganache.
8. For the ganache: Add chopped chocolate to a medium bowl. Heat cream until hot but not boiling, then pour over chocolate. Let sit for 30 seconds, then stir until smooth and glossy.
9. Spread ganache evenly over cooled brownies. Immediately sprinkle mini M&Ms and rainbow sprinkles on top.
10. Chill in the fridge for about 1 hour before slicing for clean, sharp edges.
11. Enjoy your fudgy, nostalgic cosmic brownies!
Notes
Substitution: Milk chocolate can be used for the ganache if a sweeter flavor is desired, though dark chocolate provides better contrast.
Storage: Store brownies in an airtight container in the refrigerator for up to 5 days.
Freezing: Brownies freeze beautifully for up to 3 months. Thaw overnight at room temperature.
Pro Tip: For clean slices, run your knife under hot water, wipe dry, and cut with a single motion for each slice.
Find it online: https://sweetcraftrecipes.com/cosmic-brownies-recipe/