White Chocolate Raspberry Mousse Cake

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This White Chocolate Raspberry Mousse Cake might be my new favorite! With layers of moist vanilla cake, raspberry filling and white chocolate & raspberry mousse, itโ€™s wonderfully light and yummy!

A slice of white chocolate raspberry mousse cake on a white plate.

 

White Chocolate Raspberry Mousse Cake

This post is sponsored by ALDI, but all opinions are my own.

You guys, this cake has been on my list to make for so long. Like maybe going on two years or something. Itโ€™s a flavor combination that Iโ€™ve long loved in just about any form, and I desperately wanted to make it into a tasty layer cake full of light and lovely mousse.

The problem was that I just couldnโ€™t decide how I wanted to go about it. Raspberry is such a strong flavor and white chocolate can be so light once you mix it into something. I kept hesitating about the best way to incorporate them both so that you could clearly taste and enjoy them.

Well I finally pushed through when I saw the beautiful raspberries they have at ALDI right now! They are so tasty and reasonably priced โ€“ I knew it was time to make this cake. Youโ€™ll need about three of the 6-ounce containers, but feel free to stock up on a couple more. If youโ€™re like me, youโ€™ll snack on them while baking.

Close up of the top of a white chocolate raspberry mousse cake.

How to Make This Gorgeous Cake

So, to start, youโ€™ve got the vanilla cake. Itโ€™s moist, light and one of my favorites. The sour cream adds a lovely taste and moisture that keeps it nice for several days. Just be sure not to skimp on the creaming time for the sugar and butter. It adds air to the batter that gives it that lovely rise, so itโ€™s nice and fluffy!

A slice of white chocolate raspberry mousse cake on a white plate with raspberries in the background.

Next is the white chocolate mousse. Oh my goodness, this mousse. I could just eat it with a spoon. You basically make white chocolate ganache and carefully stir in some whipped cream to lighten it up. Itโ€™s just enough lightness without sacrificing the white chocolate flavor. Love it!

And then thereโ€™s the raspberries. Puree those babies down for both the filling and mousse that will frost the cake. The filling is made over the stove and itโ€™s super quick. Just combine some of the puree, sugar and cornstarch, and let it come to a boil. Itโ€™s not a huge amount of filling, so it heats up pretty quickly. Just boil it for one minute and youโ€™re done.

Close up of the top of a white chocolate raspberry mousse cake.

For the frosting, youโ€™ll take the remaining raspberry puree and sprinkle some gelatin over it. After trying a couple methods, I found using gelatin to be the most effective way to ensure that this light, whipped raspberry mousse stays firm and easy to work with as a frosting.

A slice of white chocolate raspberry mousse cake with a bite removed on a fork.

And if you havenโ€™t worked with gelatin before, donโ€™t fear! Youโ€™ll want to sprinkle the powdered gelatin over the raspberry puree, which should be room temperature or cooler. The cooler temperature of the liquid puree allows the gelatin to bloom. Let that sit for several minutes, then heat it all up to melt down the gelatin and smooth out the raspberry mixture. You then want it to cool back down to at least room temperature before adding to the whipped cream.

One thing to note is that the temperature of the gelatin mixture once it cools can make a bit of a difference. Youโ€™ll notice on my cake that thereโ€™s quite a bit of speckled raspberry in the frosting. Thatโ€™s because I let my raspberry gelatin mixture cool in the fridge until fairly firm. When incorporated into the frosting, it left little bits of the raspberry mixture throughout. I like the look, but if you want to cut down on the amount of speckling, just try to keep your raspberry gelatin mixture from cooling too much before adding it to the whipped cream.

A slice of white chocolate raspberry mousse cake on a white plate.

And there you have it! Once everything is made, build your cake and refrigerate it until youโ€™re ready to show it off!

Seriously, this cake is the jam! Why did it take me so long to make it? Thank goodness those raspberries at ALDI finally got me motivated! The moist vanilla cake with just enough pop from the raspberry filling and the smooth, light white chocolate mousse is amazing. Then, top if off with a light whipped raspberry mousse, and I canโ€™t even handle it! I want to keep every little crumb to myself.

A white chocolate raspberry mousse cake on a teal cake stand.

More Raspberry Dessert Recipes

Watch How To Make It

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A slice of white chocolate raspberry mousse cake on a white plate.

White Chocolate Raspberry Mousse Cake

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.6 from 13 reviews
  • Prep Time: 2 hours
  • Cook Time: 25 minutes
  • Total Time: 2 hours and 25 minutes
  • Yield: 1214 Slices 1x
  • Category: Dessert
  • Method: Oven
  • Cuisine: American

Description

This White Chocolate Raspberry Mousse Cake might be my new favorite! With layers of moist vanilla cake, raspberry filling and white chocolate & raspberry mousse, itโ€™s wonderfully light and yummy!


Ingredients

Scale

VANILLA CAKE LAYERS

  • 3/4 cup (168g)ย Countryside Creameryย Unsalted Butter, room temperature
  • 1 1/2 cups (310g)ย Bakerโ€™s Cornerย Sugar
  • 3/4 cup (173g)ย Friendly Farmsย Sour Cream
  • 1 tbspย Stonemillย Vanilla Extract
  • 6ย Goldhenย Large Egg Whites, room temperature
  • 2 1/2 cups (325g)ย Bakerโ€™s Cornerย All-Purpose Flour
  • 4 tspย Bakerโ€™s Cornerย Baking Powder
  • ยฝ tspย Stonemillย Salt
  • 3/4 cup (180ml)ย Friendly Farmsย Milk, room temperature
  • 1/4 cup (60ml) water

WHITE CHOCOLATE MOUSSE

  • 6 ounces (169g)ย Bakerโ€™s Cornerย White Chocolate Chips
  • 1 cup (240ml) Countryside Creameryย Heavy Whipping Cream, cold, divided
  • 1/2 cup (58g)ย Bakerโ€™s Cornerย Powdered Sugar

RASPBERRY MOUSSE AND FILLING

  • 3 1/2 cups (420g) raspberries*
  • 2 tsp cornstarch
  • 1 1/2 tbspย Bakerโ€™s Cornerย Sugar
  • 3 1/2 tsp unflavored powdered gelatin
  • 2 3/4 cups (600ml)ย Friendly Farmsย Heavy Whipping Cream, cold
  • 1 2/3 cups (192g)ย Bakerโ€™s Cornerย Powdered Sugar

* About three 6-ounce containers of raspberries


Instructions

TO MAKE THE CAKE LAYERS:

1. Prepare three 8-inch cake pans with parchment paper circles in the bottom and grease the sides. Preheat oven to 350ยฐF (176ยฐC).
2. In a large mixing bowl, cream the butter and sugar together until light in color and fluffy, about 3-4 minutes. Do not skimp on the creaming time.
3. Add sour cream and vanilla extract and mix until well combined.
4. Add egg whites in two batches, mixing until well combined after each. Scrape down the sides of the bowl as needed to be sure all ingredients are well incorporated.
5. Combine dry ingredients in a separate bowl, then combine the milk and water in a small measuring cup.
6. Add half of the dry ingredients to the batter and mix until well combined. Add the milk mixture and mix until well combined. Add remaining dry ingredients and mix until well combined. Scrape down the sides of the bowl as needed to be sure all ingredients are well incorporated.
7. Divide the batter evenly between the cakes pans and bake for about 21-23 minutes, or until a toothpick comes out with a few crumbs.
8. Remove the cakes from the oven and allow to cool for about 2-3 minutes, then remove to cooling racks to cool completely.

TO MAKE THE WHITE CHOCOLATE MOUSSE:

9. Heat 1/4 cup (60ml) heavy cream until it just starts to boil, then pour over the white chocolate chips. Cover with clear wrap for 3-4 minutes, then whisk until smooth. Sometimes the white chocolate doesnโ€™t completely melt. If that happens, microwave white chocolate mixture in 10 second increments, stirring well between each increment, until smooth. Set aside to cool to about room temperature.
10. Whip remaining 3/4 cup (180ml) of heavy whipping cream and powdered sugar in a large mixer bowl fitted with the whisk attachment until stiff peaks form.
11. Carefully fold about 1/3 of the whipped cream into the cooled white chocolate mixture until combined.
12. Fold in the remaining whipped cream until well combined. Set the mousse in the refrigerator until ready to use.

TO MAKE THE RASPBERRY MOUSSE AND FILLING:

13. Puree raspberries with a food processor, then strain through a fine mesh sieve to discard seeds. You should end up with about 1 1/4 cups of puree.
14. To make the raspberry filling, add half a cup of the raspberry puree to a small saucepan, along with the cornstarch and sugar. Heat slowly over medium heat until the mixture begins to thicken and boil. Boil for one minute, then remove from heat to cool. Set aside.
15. To make the raspberry mousse, add remaining 3/4 cup of raspberry puree to a large dish, so that the puree makes a thin layer.
16. Sprinkle the powdered gelatin evenly over the puree and let stand for 4-5 minutes.
17. Heat the puree and gelatin in the microwave in 10-second intervals until warm and smooth. Set the mixture aside to cool to room temperature or in the fridge. Note that the colder the mixture gets, the firmer it will be. If you want a more cohesive pink color frosting, you wonโ€™t want it to firm up too much before adding to the whipped cream in the next steps, but it should be at least room temperature. The firmer the mixture gets, the chunkier your raspberry mixture will be.
18. Whip the heavy whipping cream and powdered sugar in a large mixer bowl fitted with the whisk attachment until stiff peaks form.
19. Add the cooled raspberry gelatin mixture to the whipped cream and gently whip until well combined. Refrigerate until ready to use. If your raspberry mixture was still a little thin when you added it, the whipped cream may be a bit thin. It should firm up in the fridge.

TO ASSEMBLE THE CAKE:

20. Use a large serrated knife to remove the domes from the top of the cakes so that theyโ€™re flat. Place the first cake on a serving plate or a cardboard cake round.
21. Pipe a dam of raspberry mousse around the edge of the cake, then spread 4-5 tablespoons of raspberry filling evenly into the center.
22. Add about half of the white chocolate mousse on top of the raspberry filling and spread into an even layer.
23. Add the second cake layer and another layer of raspberry filling and white chocolate mousse.
24. Top the cake with the remaining layer of cake.
25. Frost the outside of the cake. If needed, refer to my tutorial on how to frost a smooth cake.
26. Pipe swirls around the top of the cake. I used Ateco tip 808. Finish off the cake with some additional raspberries and shaved white chocolate. Refrigerate until ready to serve. Cake is best for 2-3 days.


Nutrition

  • Serving Size: 1 Slice
  • Calories: 667
  • Sugar: 48.9 g
  • Sodium: 158.5 mg
  • Fat: 39.7 g
  • Carbohydrates: 71.5 g
  • Protein: 9.1 g
  • Cholesterol: 107 mg

Enjoy!

Categories: 

Cakes and Cupcakes, Easter, Holidays, Recipes, Recipes with video, Sweets and Treats, Valentine's Day,

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114 Comments

  1. Jamesyn Horton says:

    If I wanted to do this but with 12-inch cake pans for a larger group how many do you think that would feed and should I just double to recipe?

    1. How many it feeds depends on how you slice it. There are a lot of charts that show you different ways to slice cakes that large to get different amounts of slices. For a 12-inch cake though, I may quadruple the recipe. I usually double it to go up to a 10-inch, so that’d be my guess.

  2. I would absolutely love to make this cake but when ever I make a tiered cake it slides and I end up with a giant mess, so can I make this in like a 9×13 cake pan, I know it won’t be as beautiful as yours but hopefully it will be eatable.

    1. It would be more dense as a 9×13 cake. And then you’d have to probably divide it into two layers to be able to add the fillings. I imagine you could, you’d just need to consider that part of it.

  3. When you say well combined does that mean just until barely incorporated so it doesn’t product too much gluten or mix for several minutes? I want to try this but I wanted to clarify.

    1. It should be incorporated (no obvious streaks of things not incorporated), but not mixed too much, to avoid over mixing.

  4. can I use strawberries instead of raspberries?

  5. This looks wonderful! Iโ€™d like to make it for our Easter dinner. Do you use whole, 2%, 1%, or skim mil?

  6. Could we use raspberry jam instead of the puree?

    1. That would probably work just fine. My experience trying to replace homemade purรฉes and such with jams is that the flavor is just not the same. But you could certainly give it a try.

  7. Can I make the white chocolate mousse a day ahead of time and refrigerate it?

    1. It might deflate if you let it sit overnight and then stir it up again so I probably wouldnโ€™t recommend it.

  8. Can I use cake flour and how much . Thank you

    1. It’s not my preference, but you could try it. I would use the same amount.

  9. Katharina says:

    Thank you for a great recipe, and for having the option of the metric measurements! Do you think I could add frozen raspberries in to the cake batter?

    1. The raspberries would likely sink, but you could try it.

  10. Wendy McQueen says:

    I made it and it was so good that we will use the recipe for my son’s wedding cake but I’ll be substituting the frosting for a white buttercream.

    1. Did it work well for the wedding cake? My daughter wants this for her wedding cake as well, and Iโ€™m trying to figure out what adjustments might need to be made.

  11. Can I make this into cupcakes?

  12. Arianna M Petrow says:

    I loved this recipe but why no egg yolks

  13. Can you please share ingredients measurements for 9.5 inch cake tin.. Thanks

    1. I donโ€™t have those measurements since I made it in an 8 inch pan. For a larger pan, you can leave it the same and have a cake that isnโ€™t quite as tall or you could try using one and a half recipes worth.

    2. Arianna M Petrow says:

      Made this the cake its self was delicious going to make it with lemon curd next thank you

  14. Baked this for my daughter’s birthday and it turned out great. Loved the recipe. Thank you

  15. Meant to post this as a standalone comment, sorry! Is there an ideal amount of time to let the mousses (or is it micce?) firm up in the fridge before assembling? I nibbled the tops of my cakes and tasted everything and itโ€™s all so frikkinโ€™ delicious.

    Iโ€™m making it for my birthday tomorrow.