Strawberry Mousse Brownies are fudgy brownies topped with a creamy homemade strawberry cheesecake mousse. Both the brownies and mousse stand on their own. But together, they create a dessert that combines chocolatey goodness and sweet strawberries for an indulgent treat! If you want a double dose of chocolate, I also have Chocolate Mousse Brownies you will love!

Spreading strawberry mousse over a pan of baked brownies.
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Mousse Brownies Ingredients & Smart Substitutions

Brownies: This go-to brownie recipe is fudgy, moist, and rich. If you prefer, you can use a boxed brownie mix—simply follow the package instructions and let the brownies cool completely before adding the mousse. And be sure you make them in the same pan as I did; I love this one from Amazon that comes in 3 different sizes!

Cornstarch: Adding cornstarch to the brownie recipe helps give the brownies a soft, chewy, and fudgy texture.

Cocoa Powder: Dutch-processed cocoa powder is recommended for a smooth flavor and rich color. Regular unsweetened cocoa powder can be used but may alter the taste and texture slightly. (And will appear lighter in color.)

Strawberry Cheesecake Mousse: The strawberry cheesecake mousse that tops the brownies can be a dessert on its own! It is a super creamy mousse that gives you the flavors of a strawberry cheesecake in a mousse. Then, try my Easy Cheesecake Mousse and add your favorite flavors.

Can I Make Strawberry Mousse Brownies Ahead Of Time?

Yes, you can prepare both the brownies and mousse ahead of time!

  • Brownies: Bake and cool the brownies, then store them in an airtight container at room temperature for up to 2-3 days.
  • Mousse: Prepare the mousse and store it in the refrigerator for up to 2-3 days. Stir before spreading over the brownies.

Note: Making each part in advance might tempt you to enjoy them separately before assembly!

One Strawberry Mousse Brownie on a white plate with mousse spilling over and a strawberry on top.

How To Store Strawberry Mousse Brownies

Because of the mousse topping, it’s best to store the strawberry mousse brownies in the refrigerator. Carefully cover the brownies in the pan with plastic wrap. They will last up to 2-3 days.

Can I Freeze These Brownies?

Yes, you can freeze these brownies. Freeze the brownies with the mousse topping for 1-2 hours to set, then wrap for long-term storage. Thaw in the refrigerator overnight to maintain the mousse’s texture.

Strawberry Mousse Brownies

Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Strawberry Mousse Brownies are fudgy brownies topped with a creamy homemade strawberry cheesecake mousse. Both the brownies and mousse, individually, stand on their own. And then, together, they create a dessert that combines chocolatey goodness and sweet strawberries for an indulgent treat!



  • Preheat the oven to 350°F. Line a 9×13-inch baking dish with parchment paper up the sides.
  • In a large bowl whisk flour, cornstarch, cocoa, baking powder, and salt. Set aside.
  • To the bowl of a stand mixer fitted with the paddle attachment, add the eggs, sugar, butter, and vanilla. Beat on medium speed until light and fluffy.
  • With the mixer off, add the flour mixture. Turn the mixer on low and mix until the ingredients are well combined.
  • Pour brownie batter into the prepared baking dish and bake for 30-35 minutes, or until done. Fudgy brownies are done baking when the edges appear set, but the center is still shiny, or moist.
  • Let the brownies cool at room temperature.
  • Spoon the mousse over the cooled brownies and spread it into an even layer. Garnish with fresh strawberries

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What the Test Kitchen had to say about this recipe:


This is an interesting combination. The creamy and light texture of the mousse, paired with the dense chocolatey brownie was an experience. This is a fun (and pretty) way to dress up brownies!


The strawberry mousse is one of my favorite desserts, so I knew I would love it on the fudgy brownies. If you like chocolate-covered strawberries, make these brownies!


Such a classic pairing! The fudgy brownie just complements the creamy mousse so well!


I think the flavors in this brownie pair incredibly well! They're tasty and perfectly fudgy. These are sure to impress!

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Meet Amanda Rettke

Amanda Rettke is the creator of I Am Baker, and the bestselling author of Surprise Inside Cakes: Amazing Cakes for Every Occasion – With a Little Something Extra Inside.Over the course of her 15+ year blogging adventure, she has been featured in and collaborated with the Food Network, New York Times, LA Times, Country Living Magazine, People Magazine, Epicurious, Brides, Romantic Homes, life:beautiful, Publishers Weekly, The Daily Mail, Star Tribune, The Globe and Mail, DailyCandy, YumSugar, The Knot, The Kitchn, and Parade, to name a few.

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