Cosmic Brownie Cheesecake
This Cosmic Brownie Cheesecake combines a fudgy chocolate brownie crust with a rich, creamy chocolate cheesecake layer and a smooth chocolate ganache topping. Finished with colorful candy-coated chocolate pieces, it has the nostalgic look of a cosmic brownie while delivering the indulgent texture of a homemade cheesecake.
The brownie base gives every slice a dense chocolate foundation, while the chocolate cheesecake filling stays creamy and rich. A glossy ganache layer finishes the dessert and adds even more chocolate flavor.
It’s perfect for birthdays, holidays, celebrations, dinner parties, potlucks, and chocolate lovers. If you love brownies and cheesecake, this is the perfect combination of both.
Why Everyone Loves Cosmic Brownie Cheesecake
- Fudgy brownie crust: The chocolate brownie base creates a rich and chewy foundation.
- Creamy chocolate cheesecake: Full-fat cream cheese, melted chocolate, and sour cream create a smooth filling.
- Rich chocolate flavor: Chocolate appears in the brownie crust, cheesecake, and ganache.
- Fun cosmic topping: Candy-coated chocolate pieces add color and a nostalgic finishing touch.
- Perfect for celebrations: This cheesecake looks impressive enough for birthdays and special occasions.
- Make-ahead friendly: The cheesecake is chilled overnight, making it convenient to prepare ahead of time.
Ingredients Overview
- Bittersweet chocolate – Creates the rich chocolate flavor and fudgy texture of the brownie crust.
- Unsalted butter – Adds richness and moisture to the brownie base.
- Granulated sugar – Sweetens both the brownie crust and cheesecake filling.
- Eggs – Help bind the brownie batter and provide structure to the cheesecake.
- Vanilla extract – Enhances the chocolate flavor throughout the dessert.
- All-purpose flour – Provides structure for the brownie crust.
- Cocoa powder – Deepens the chocolate flavor in both the brownie and cheesecake.
- Salt – Balances the sweetness and enhances the chocolate.
- Semi-sweet chocolate chips – Add chocolate richness to the cheesecake filling and ganache.
- Full-fat cream cheese – Creates the rich, creamy cheesecake texture.
- Sour cream – Adds creaminess and helps balance the richness of the chocolate.
- Heavy cream – Combines with chocolate to create a smooth ganache.
- Candy-coated chocolate pieces – Add the signature colorful cosmic brownie-style decoration.
Variations
- Extra Chocolate Cosmic Cheesecake – Add mini chocolate chips to the cheesecake filling for additional chocolate texture.
- Dark Chocolate Version – Use dark chocolate chips instead of semi-sweet chocolate for a deeper chocolate flavor.
- Birthday Cheesecake – Add extra colorful candy-coated chocolate pieces over the ganache for a festive appearance.
- Chocolate Cookie Crust – Replace the brownie crust with a chocolate cookie crust if you prefer a simpler base.
- Peanut Butter Chocolate Cheesecake – Swirl a small amount of creamy peanut butter into the cheesecake filling before baking.
- Mini Cosmic Cheesecakes – Divide the ingredients into smaller portions and bake in individual cheesecake molds for single servings.
How to Make Cosmic Brownie Cheesecake
1. Prepare the Brownie Crust
Preheat your oven to 350°F (180°C).
Line a 9-inch springform pan with parchment paper. Wrap the outside bottom of the pan with aluminum foil to help prevent water from the water bath from leaking into the pan.
Melt the bittersweet chocolate and unsalted butter together in a heatproof bowl. Microwave in 30-second intervals, stirring between each interval, until completely melted.
Allow the mixture to cool slightly.
2. Make the Brownie Batter
In a separate bowl, beat the granulated sugar, eggs, and vanilla extract with a hand mixer on medium-high speed until the mixture becomes pale and frothy.
Slowly pour in the melted chocolate and butter mixture while mixing.
Continue mixing until everything is well combined.
Add the all-purpose flour, cocoa powder, and salt. Fold the dry ingredients into the chocolate mixture until no dry streaks remain.
Avoid overmixing once the flour has been incorporated.
3. Bake the Brownie Crust
Pour the brownie batter into the prepared springform pan.
Bake for approximately 25–30 minutes, or until a toothpick inserted into the center comes out clean.
Remove the pan from the oven and allow the brownie crust to cool while preparing the cheesecake filling.
4. Prepare the Water Bath
Reduce the oven temperature to 325°F (165°C).
Fill a large oven-safe skillet or casserole dish with warm water and place it carefully on the bottom rack of the oven.
The cheesecake will bake on the rack directly above the water bath.
The water bath helps create a gentler baking environment and helps reduce the chance of cracks.
5. Melt the Chocolate
Place the semi-sweet chocolate chips in a microwave-safe bowl.
Heat them in 30-second intervals, stirring after each interval, until completely melted and smooth.
Set aside to cool slightly.
6. Make the Chocolate Cheesecake Filling
In a large mixing bowl, beat the softened cream cheese and granulated sugar until smooth.
Scrape down the sides of the bowl as needed.
Add the melted chocolate, vanilla extract, cocoa powder, and salt.
Mix on low speed until smooth and creamy.
Add the sour cream and mix until incorporated.
7. Add the Eggs
Add the three eggs one at a time, mixing after each addition.
Scrape down the sides of the bowl after the second and third eggs to make sure everything is evenly incorporated.
Avoid overmixing the batter.
8. Bake the Cheesecake
Pour the cheesecake filling over the cooled brownie crust.
Smooth the surface with a spatula.
Place the springform pan in the oven directly above the water bath.
Bake for approximately 60–70 minutes.
The edges should be set while the center should still have a gentle jiggle, similar to Jell-O.
9. Cool the Cheesecake Gradually
Turn off the oven and crack the oven door open.
Leave the cheesecake inside for 1 hour.
Remove it from the oven and allow it to cool at room temperature for another hour.
Cover the cheesecake and refrigerate it overnight.
Gradual cooling helps reduce the chance of cracks forming on the surface.
10. Prepare the Chocolate Ganache
Place the semi-sweet chocolate chips in a large bowl.
Heat the heavy cream for approximately 45 seconds.
Pour the warm cream over the chocolate and let it sit for about 1 minute.
Whisk until the chocolate and cream become smooth and glossy.
Cover the surface with plastic wrap and refrigerate the ganache for approximately 1 hour.
11. Decorate the Cheesecake
Once both the cheesecake and ganache are chilled, carefully release the springform pan.
Remove the cheesecake and place it on a serving plate.
Spread the chocolate ganache evenly over the top.
Finish with candy-coated chocolate pieces.
Slice and serve.
Pro Tips and Cooking Secrets
Use room-temperature ingredients. Room-temperature dairy ingredients and eggs help create a smoother, more uniform cheesecake batter.
Don’t skip the water bath. The water bath creates a gentler baking environment and helps prevent the cheesecake from becoming dry or developing cracks.
Don’t overmix the cheesecake batter. Mix until the ingredients are smooth and incorporated, especially after adding the eggs.
Cool the cheesecake gradually. Leaving the cheesecake in the turned-off oven before cooling it at room temperature helps reduce sudden temperature changes that can cause cracking.
Serving Suggestions
- Serve chilled – Refrigerate the cheesecake overnight for the best texture.
- Add extra candy pieces – Sprinkle additional colorful candy-coated chocolates over individual slices.
- Pair with whipped cream – Add a small dollop of whipped cream for an extra creamy dessert.
- Serve with coffee – The rich chocolate flavor pairs especially well with hot coffee or espresso.
How to Store Cosmic Brownie Cheesecake
Store the cheesecake in a large airtight container or covered cake carrier in the refrigerator for up to 5 days.
For the best appearance, remove the candy-coated chocolate pieces before storing because their colors can bleed into the ganache.
Can You Freeze Cosmic Brownie Cheesecake?
Yes. According to the provided recipe, you can slice the cheesecake and freeze the pieces in an airtight container for up to 3 months.
Thaw the cheesecake in the refrigerator for 1–2 hours or overnight before serving.
Make-Ahead Tips
This cheesecake is especially convenient to make ahead because it needs to chill overnight.
You can prepare the cheesecake, allow it to cool completely, and refrigerate it overnight. Prepare the ganache separately and finish decorating the cheesecake once both components are chilled.
Cosmic Brownie Cheesecake FAQs
Why does this cheesecake need a water bath?
The provided recipe uses a water bath to help prevent cracks and keep the cheesecake from becoming dry or rubbery.
How do I know when the cheesecake is done?
The edges should be set while the center still has a gentle jiggle similar to Jell-O. The recipe recommends baking for approximately 60–70 minutes.
Why should the cheesecake cool gradually?
Gradual cooling helps prevent sudden temperature changes, which can contribute to cracks in the cheesecake.
Can I make Cosmic Brownie Cheesecake ahead of time?
Yes. The recipe specifically calls for the cheesecake to chill in the refrigerator overnight, making it well suited for preparing ahead of serving.
How long does Cosmic Brownie Cheesecake last in the refrigerator?
The provided storage instructions recommend keeping it refrigerated in an airtight container for up to 5 days.
Can I freeze Cosmic Brownie Cheesecake?
Yes. Slice the cheesecake and freeze it in an airtight container for up to 3 months. Thaw it in the refrigerator for 1–2 hours or overnight before eating.
Why should I use room-temperature ingredients?
The recipe recommends room-temperature dairy ingredients and eggs because they help create a more uniform cheesecake batter.
What should I do with the candy-coated chocolate pieces when storing the cheesecake?
For the best appearance, remove the candy-coated chocolate pieces before storing the cheesecake. Their colors can bleed into the ganache while refrigerated.
Cosmic Brownie Cheesecake
Equipment
- Electric hand mixer or stand mixer
- 9-inch springform pan
- heatproof microwave-safe bowl
- large mixing bowl
- rubber spatula
- large oven safe skillet or casserole Used for the water bath.
- aluminum foil Used to wrap the bottom of the springform pan.
- parchment paper Used to line the springform pan.
Ingredients
- 150 grams bittersweet chocolate
- 76 grams unsalted butter
- 183 grams granulated sugar
- 2 large eggs, room temperature
- 2 teaspoon vanilla extract
- 62 grams all purpose flour
- 27 grams cocoa powder
- ½ teaspoon salt
- 226 grams semi-sweet chocolate chips
- 680 grams full fat cream cheese, softened
- 140 grams granulated sugar
- 2 teaspoon vanilla extract
- 1 tablespoon cocoa powder
- ½ teaspoon salt
- 140 grams sour cream, room temperature
- 3 large eggs, room temperature
- 200 grams semi-sweet chocolate chips
- 200 grams heavy cream
- 2 tablespoon candy-coated chocolate pieces
Instructions
- Preheat the oven to 350°F/180°C and line a 9-inch springform pan with parchment paper. Wrap the bottom of the pan with aluminum foil to prevent leaks.
- Melt bittersweet chocolate and butter in the microwave in a heatproof bowl, mixing every 30 seconds until completely melted. Let cool slightly.
- With a hand mixer, beat granulated sugar, eggs, and vanilla extract together on medium high speed until frothy and pale.
- While beating, pour the melted chocolate and butter mixture in. Continue mixing until well combined.
- Fold the all purpose flour, cocoa powder, and salt into the wet ingredients until the dry streaks disappear.
- Pour the batter into the prepared pan and bake for 25-30 minutes or until a toothpick inserted in the center comes out clean. Remove from the oven and let cool while you make the cheesecake batter.
- Reduce the oven heat to 325°F/165°C. Fill a large oven safe skillet or casserole with warm water and carefully place it on the bottom rack. This is the water bath.
- Melt the semi-sweet chocolate chips in a large bowl in the microwave. Stir every 30 seconds until completely melted. Set aside to cool slightly.
- Beat the cream cheese and sugar together in a large mixing bowl with a mixer until smooth. Scrape down the sides of the bowl with a rubber spatula.
- Pour in the melted chocolate chips and beat in the vanilla, cocoa powder, and salt on low until smooth and creamy. Beat in the sour cream.
- Mix in the eggs one at a time, scraping the sides of the bowl after eggs 2 and 3.
- Pour the filling over the crust and smooth out the top. Place in the oven directly above the water bath and bake for 60-70 minutes. It’s done when the edges are set and the center jiggles like Jell-O.
- Turn off the oven, crack the door open, and let the cheesecake cool inside for 1 hour. Remove from the oven and cool on top of it for 1 more hour before covering in plastic and chilling in the refrigerator overnight.
- Add chocolate chips to a large bowl. Microwave heavy cream in a separate container for 45 seconds. Pour over the chocolate and let sit for 1 minute.
- Whisk the chocolate and cream together until smooth and glossy. Place plastic wrap over the surface and chill in the refrigerator for an hour.
- Once the cheesecake and ganache are both cool, release the springform pan and remove the cheesecake. Spread ganache over the top and add candy coated chips. Slice and enjoy!
