Cosmic Brownie Cheesecake Recipe

If you grew up adoring those fudgy, sprinkle-topped Cosmic Brownies, this Cosmic Brownie Cheesecake will absolutely knock your socks off. Imagine a rich brownie base topped with the creamiest chocolate cheesecake, crowned with a velvety ganache and rainbow chips—this is nostalgia and indulgence all in one dazzling dessert!

Why You’ll Love This Recipe

  • Layered Dessert Magic: Every bite is stacked with fudgy brownie, silky cheesecake, and glossy ganache for the ultimate dessert experience.
  • Nostalgic (But Grown-Up!): It’s the grown-up take on the classic Cosmic Brownie you remember from childhood, with a touch of decadence you’ll crave.
  • Showstopper for Any Occasion: This Cosmic Brownie Cheesecake looks absolutely gorgeous—and always steals the dessert table spotlight at parties!
  • Easy to Make (No Fancy Equipment!): You don’t need any baking wizardry or complicated techniques, and the results are nothing short of spectacular.
Cosmic Brownie Cheesecake Recipe - Recipe Image

Ingredients You’ll Need

The secret to this mind-blowing Cosmic Brownie Cheesecake lies in creating luscious layers with simple, everyday ingredients. Each one brings something special—whether it’s depth of chocolate flavor, creamy richness, or that playful, cosmic pop of color on top.

  • Box of Dark Chocolate Brownie Mix: Your shortcut to a chewy, ultra-chocolatey base that starts the whole show with a nostalgic wink.
  • Eggs, Oil, and Water (for the mix): Whatever your brownie mix calls for—these come together to give you that irresistible fudgy texture.
  • Semi-Sweet Chocolate (8oz + 8oz chips): Real chocolate goes into both the cheesecake and ganache, creating an ultra-satisfying chocolatey flavor.
  • Cream Cheese (3 bricks/24oz): The heart of any great cheesecake—softened to room temp for the creamiest, dreamiest filling.
  • Granulated Sugar: Adds just the right amount of sweetness to balance that rich chocolate.
  • Large Eggs (3): These give your cheesecake its classic, custardy structure and silky finish.
  • Sweetened Condensed Milk: Lends a glossy, luscious finish to your ganache (and a bit of extra magic, too!).
  • Salted Butter: Helps make the ganache spreadable and adds wonderful flavor.
  • Rainbow Chocolate Chips: The perfect final touch! These cheerful sprinkles are what make this a true “Cosmic” Brownie Cheesecake.
Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

One of my favorite things about the Cosmic Brownie Cheesecake is how fun and flexible it is. There’s so much room for your own creative spin—whether you want it gluten-free, extra chocolatey, or a little fruity.

  • Gluten-Free Dream: Simply swap in a gluten-free brownie mix and you’re set—everyone gets a slice of cosmic deliciousness.
  • Peanut Butter Twist: Swirl a few dollops of creamy peanut butter into the cheesecake layer before baking for a playful peanut-butter-cup vibe.
  • White Chocolate Ganache: Top with a white chocolate ganache and pastel sprinkles for a fun color pop and a sweeter finish.
  • Mini Cheesecakes: Use a muffin tin with liners to make adorable, handheld cosmic brownie cheesecake bites—perfect for parties.

How to Make Cosmic Brownie Cheesecake

Step 1: Prepare and Bake the Brownie Crust

Preheat your oven to 350°F and prep a 9-inch springform pan with a circle of parchment on the bottom (trust me, it makes serving so much easier!). Mix up your brownie batter as directed on the box, pour it into the pan, and bake for 12–15 minutes until it’s set but still a bit fudgy. Let the brownie crust cool while you work on the cheesecake magic.

Step 2: Whip Up the Chocolate Cheesecake Layer

Drop the oven to 325°F. Melt 8 ounces of semi-sweet chocolate in the microwave (short bursts + stirring = silky results). Next, beat the softened cream cheese and sugar until super fluffy—this takes about 5–7 minutes, and patience here equals creamy perfection! Add eggs one by one, then blend in the cooled chocolate. Pour this swoon-worthy mixture over your brownie crust and smooth the top.

Step 3: Bake and Cool Gently

Bake the cheesecake for 45–60 minutes; you want those edges set and the center just barely wobbly. Then, turn the oven off, crack the door, and let it rest for 30 minutes inside—this helps avoid cracks and keeps everything ultra creamy. Once it’s cool to the touch, pop it in the fridge (uncovered & in the pan!) to chill at least 8 hours or, ideally, overnight.

Step 4: Make the Ganache & Add Your Cosmic Touch

When the cheesecake is chilled, heat the chocolate chips, sweetened condensed milk, and butter over medium-low until smooth and glossy. Pour the ganache onto your cheesecake, then (while it’s still soft) scatter a generous helping of rainbow chocolate chips atop. Refrigerate it for 30 more minutes to set that gorgeous, shiny top.

Step 5: Release, Slice, and Savor!

Once everything is beautifully set, unclasp your springform pan, transfer the Cosmic Brownie Cheesecake to a serving plate, and get ready for oohs and ahhs! Slice it up and watch those magical layers reveal themselves—then dig in with sheer joy.

Pro Tips for Making Cosmic Brownie Cheesecake

  • Room Temp Cream Cheese is Key: For the creamiest cheesecake layer, make sure your cream cheese is fully softened before mixing—no lumps allowed!
  • Melt Chocolate Slowly: Short microwave bursts with stirring yield silky smooth chocolate and prevent seizing or burning (your cheesecake will thank you).
  • Don’t Rush the Cooling: Cheesecake texture is all about slow cooling—let it rest in the oven, then chill overnight for the perfect, sliceable result.
  • Ganache While Cold, Sprinkles While Wet: Always add sprinkles while ganache is freshly poured—otherwise, they won’t stick on top and look as cosmic as they should!

How to Serve Cosmic Brownie Cheesecake

Cosmic Brownie Cheesecake Recipe - Recipe Image

Garnishes

This cheesecake doesn’t need much dressing up, but feel free to amp up the cosmic vibe with extra rainbow chips, a dollop of whipped cream, or a drizzle of chocolate sauce just before serving. If you’re feeling playful, scatter a pinch of edible glitter to really make it sparkle like the galaxy it’s named after!

Side Dishes

Since Cosmic Brownie Cheesecake is super rich and decadent, I love pairing slices with something fresh and simple: a bowl of berries, a citrusy fruit salad, or even a cold glass of milk helps cut through all that wonderful chocolate. For parties, a scoop of vanilla ice cream on the side is never a bad idea!

Creative Ways to Present

Try serving this dessert as cute mini cheesecakes in individual jars for a grab-and-go treat, or slice it extra thin and arrange the wedges in a “sunburst” for a cosmic party tray. If you have kids (or adults) helping, set up a topping bar with extra sprinkles and sauces so everyone can go wild with their own creations!

Make Ahead and Storage

Storing Leftovers

This cheesecake keeps beautifully in the fridge. Just cover the pan or transfer slices to an airtight container and chill for up to 5 days—the brownie base stays fudgy and the ganache stays glossy. Let it sit at room temp for about 20 minutes before serving for the best texture.

Freezing

Yes, you can absolutely freeze your Cosmic Brownie Cheesecake! Wrap individual slices tightly in plastic wrap and foil, then freeze for up to 2 months. Thaw overnight in the fridge, and the texture will be just as decadent as fresh.

Reheating

No need to heat this dessert, but if you want a slightly warmer slice, microwave for just 10–15 seconds—enough to soften the ganache but not melt the cheesecake! Always use a gentle touch to preserve those gorgeous layers.

FAQs

  1. Can I use homemade brownie batter instead of a box mix?

    Absolutely! If you have a favorite homemade brownie recipe, go ahead and use it for the base—just make sure to use enough to line the bottom of a 9-inch springform pan, and keep the baking time similar.

  2. What if I can’t find rainbow chocolate chips?

    No worries! You can use regular rainbow sprinkles, mini M&Ms, or even chopped chocolate candy bars for that cosmic look and extra crunch.

  3. Why did my cheesecake crack?

    Cracks are often caused by rapid temperature changes or overbaking. Letting the cheesecake cool down slowly in the oven with the door cracked helps prevent this, and making sure not to overmix the batter will also reduce the risk.

  4. Can I make Cosmic Brownie Cheesecake ahead for a party?

    Yes! In fact, this cheesecake is at its best after chilling overnight. Make it a day or even two ahead, and you’ll have a stress-free, ready-to-serve showstopper waiting in the fridge.

Final Thoughts

If you love chocolate, nostalgia, and a bit of color on your dessert table, you owe it to yourself to try this Cosmic Brownie Cheesecake. It’s pure fun to make, irresistible to eat, and guaranteed to put a big smile on faces of all ages. Bake it up, share it, and let your kitchen go cosmic!

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Cosmic Brownie Cheesecake Recipe

Cosmic Brownie Cheesecake Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.7 from 98 reviews
  • Author: Jaden
  • Prep Time: 35 minutes
  • Cook Time: 1 hour
  • Total Time: 10 hours 5 minutes
  • Yield: 1 cheesecake (8 slices) 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Indulge in the ultimate dessert with this Cosmic Brownie Cheesecake recipe. A decadent combination of rich brownie crust, creamy chocolate cheesecake, and a luscious chocolate ganache topping, all adorned with colorful rainbow chocolate chips.


Ingredients

Units Scale

Brownie Crust

  • 1 box dark chocolate brownie mix, plus ingredients to make it

Chocolate Cheesecake

  • 8 ounces semi-sweet chocolate, roughly chopped
  • 24 ounces cream cheese, softened
  • 1 cup granulated sugar
  • 3 large eggs

Chocolate Ganache

  • 8 ounces semi-sweet chocolate chips
  • 1/2 cup sweetened condensed milk
  • 1/4 cup salted butter
  • rainbow chocolate chips, for decoration

Instructions

  1. For the Brownie Crust – Preheat oven to 350°F. Cut a circle of parchment paper to fit bottom of a 9-inch springform pan and position it inside. Prepare brownie mix per package instructions and pour into the pan. Bake for 12-15 minutes.
  2. For the Chocolate Cheesecake – Prepare chocolate, mix cream cheese and sugar, add eggs, blend in melted chocolate, pour over crust, bake, cool, chill.
  3. For the Chocolate Ganache – Heat chocolate chips, condensed milk, and butter until smooth. Pour over cheesecake and top with rainbow chips. Chill until set.

Notes

  • For best results, chill the cheesecake overnight before serving.
  • You can customize the toppings with your favorite sprinkles or nuts.

Nutrition

  • Serving Size: 1 slice
  • Calories: 1142 kcal
  • Sugar: 91g
  • Sodium: 556mg
  • Fat: 68g
  • Saturated Fat: 37g
  • Unsaturated Fat: 24g
  • Trans Fat: 0.3g
  • Carbohydrates: 120g
  • Fiber: 5g
  • Protein: 16g
  • Cholesterol: 181mg

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