Walnut Caramel Mirror Cake

I have always loved the combination between caramel walnuts and chocolate and here we are with this Walnut Caramel Mirror Cake, an elegant dessert with a caramel mirror glaze perfect for upcoming Easter holiday.  Walnut cake at the bottom, followed by a semisweet chocolate layer, caramelized toasted nuts cream and a mascarpone and coffee mousse on top. Everything coated with a caramel mirror glaze and decorated with a chocolate golden flower for o more elegant look.

I know it seems complicated, but it actually works quite fast and each step is easy to prepare. It is best to start preparing this cake a day or two in advance as it requires freezing time.

This Walnut Caramel Mirror Cake definitely worth all the effort and is by far one of the most delicious cakes I’ve ever made. Enjoy!

Walnut Caramel Mirror Cake slice

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Walnut Caramel Mirror Cake

5 from 3 votes
Walnut Caramel Mirror Cake - walnut cake at the bottom, followed by a semisweet chocolate layer, caramelized toasted nuts and a mascarpone and coffee mousse on top. Everything coated with a caramel mirror glaze and decorated with a chocolate golden flower for o more elegant look.
Servings 16 servings
Prep Time 1 hour
Cook Time 35 minutes
Total Time 1 hour 35 minutes


Walnut Cake

  • 2 egg whites
  • Pinch of salt
  • 1/3 cup (70g) sugar
  • 2/3 cup (70g) walnuts , ground
  • 2 tbsp (20g) all-purpose flour

Chocolate Layer

  • 5.5 oz (150g) semisweet chocolate
  • 3 tbsp (45ml) whipping cream

Walnut Caramel Layer

  • 1/3 cup (70g) sugar , for caramel
  • 1 tbsp (15ml) water
  • 2/3 cup (70g) walnuts , toasted
  • 5 tbsp (70g) butter
  • 2 egg yolks
  • 3 tbsp (45g) sugar , for mixing with yolks
  • pinch of salt

Mascarpone Mousse

  • 16 oz (500g) mascarpone , room temperature
  • 2/3 cup (80g) powdered sugar
  • 1 ½ cup (360g) whipping cream (35% fat) , chilled
  • 1 tbsp (10g) gelatin powder
  • 1/4 cup (60ml) cold water
  • 2 tsp (4g) instant coffee
  • 1 tsp (5g) vanilla extract

Caramel Mirror Glaze

  • 1 cup (200g) sugar
  • 1 tbsp (15ml) lemon juice or water
  • 3.5 fl. oz (100ml) water
  • 3/4 cup (180ml) whipping cream
  • 1/2 tsp (3g) salt
  • 2 tbsp (16g) cornstarch
  • 1 tbsp (15ml) water , for mixing with cornstarch
  • 1 tbsp (10g) gelatin powder
  • 1/4 cup (60ml) cold water , for dissolving gelatin

Chocolate Flower

  • 2.5 oz (70g) semisweet chocolate , for melting
  • 1 oz (30g) semisweet chocolate , for tempering
  • golden powder , optional
  • chopped walnuts


  • Prepare walnut cake. Preheat oven to 325F (160C). Grease and line with parchment paper a 8 ½ inch (21cm) pan.
  • Separate egg whites from the yolks. Add a pinch of salt over the whites and start mixing until foamy. Gradually add sugar and mix until stiff peaks form.
  • Gently fold in ground walnuts and flour. Pour the batter into the prepared pan and bake for 25-30 minutes.
  • Let it cool completely and use a 8 inch (20cm) cake ring to cut the edges of the cake. Transfer the cake into a 8 inch (20cm) springform pan, lined with parchment paper.
  • Prepare the chocolate layer. Place the chocolate and cream into a heatproof bowl and melt over bain-marie. Spread the melted chocolate evenly over the walnut cake and refrigerate to set.
  • Meanwhile prepare the caramel walnut layer. Toast the walnuts in a pan stirring constantly. When cooled enough cut in smaller pieces.
  • In a small bowl mix the yolks with the 3 tbsp (45g) of sugar until creamy and light yellow colored.
  • Place the 1/3 cup (70g) sugar with water into a saucepan. Place over medium-low heat until sugar dissolves and gets a caramel color.
  • Add butter, stir until melted and then add walnuts and salt. Add mixed yolks and continue mixing just until it thickens, up to 1 minute. Don’t overcook  Cool slightly.
  • Spread the walnut caramel layer over the chocolate and refrigerate until the mascarpone mousse is prepared.
  • Prepare mascarpone mousse.  Dissolve gelatin in cold water, add instant coffee and let it swell for about 5 to 10 minutes.
  • In a large bowl mix mascarpone until smooth. Add powdered sugar and mix to combine. Add vanilla extract.  Place the gelatin over low heat just until the gelatin dissolves and pour it over the mascarpone mixture and mix to combine.
  • In another bowl mix cream until stiff peaks form. Gently fold the cream into mascarpone mixture.
  • Place the walnut cake in the center of a 9 inch (23cm) parchment paper lined pan or cakeware from Delicake, as I’ve used. 
  • Spread the mousse on top and edges of the cake. Cover and freeze for at least 4 hours or overnight.
  • Prepare caramel mirror glaze.  Dissolve gelatin in 1/4 cup cold water and let it swell for about 5 to 10 minutes.
  • In a small bowl dissolve cornstarch in 1 tbsp water and set aside until ready to use.
  • Place sugar and lemon juice in a saucepan. Place over medium low heat until sugar dissolves and gets a caramel color. Add water, cream, dissolved cornstarch and salt. Bring to a boil until thickens.
  • Remove from heat, add gelatin and stir to combine.Sieve the glaze and let it cool to 85F (29C).
  • Take the cake out of the freezer and use a hair dryer to defrost the edges. Remove the cake from the pan and place it over a rack or simply on a bowl placed over a parchment paper lined baking sheet to collect the excess.
  • Pour the glaze on top and edges of the cake. Use an offset spatula to remove the drips and decorate the bottom of the cake with chopped walnuts. Transfer the cake to a serving platter and refrigerate for several hours to defrost the cake and set the glaze.
  • Prepare chocolate flower.   Use about  two 5×15 inch (12x38cm) hard paper pieces and curve. Melt the 2.5 oz (70g) semisweet chocolate over bain marie. Remove from heat and add 1 oz (30g) of chocolate for tempering.
  • Brush the chocolate on parchment paper in shape of flower petals.  Make about seven or eight 4 inch (10cm) petals and  about 8 smaller 2 inch (4cm) petals. Place the parchment paper over the prepared curved hard paper and refrigerate the petals for about 10 minutes, remove and peel from the parchment paper.
  • Assemble the flower. On a parchment paper add a pit of melted chocolate and arrange the large petals. Add more melted chocolate and arrange the smaller petals. Add melted chocolate in the center and add chopped nuts. Refrigerate the flower for at least 15 minutes before decorating the cake. Slightly brush golden powder on the leaves if desired. Enjoy.



Serving: 1gCalories: 384kcalCarbohydrates: 33.1gProtein: 8.6gFat: 26.1gSaturated Fat: 13.2gCholesterol: 81mgSugar: 28.1g
Calories: 384kcal
Course: Dessert
Cuisine: American
Keyword: caamel mirror cake, caramel mirror glaze, chocolate flower, entremet, walnut caramel entremet, walnut caramel mirror cake

Did you make this recipe?

Please let me know how it turned out for you! Leave a comment below and tag @homecookingadventure on Instagram and hashtag it #homecookingadventure.

Join the Conversation

  1. Karly Author says:

    This is absolutely gorgeous! Almost too perfect to eat!

  2. Albert Bevia Author says:

    This is one of the most beautiful cakes I have ever seen, loved the video of you making this masterpiece

  3. Sue Author says:

    The cake is so beautiful. I can only hope it looks a little bit like yours when I try to make. You are a master. Thanks for all the great recipes

  4. Antoanella Author says:

    Another great idea, most likely with a heavenly taste, as I love to pieces the combination of walnuts, espresso and caramel. I want to try it tomorrow for an anniversary. I noted that, in order for the mousse to set, freezing was necessary. May I ask, when ready, should the cake be kept in the fridge? Would the mousse and mirror glaze hold well? How long would it last? Thank you very much!

    1. Ella-HomeCookingAdventure Author says:

      Hi Antoanella.

      Yes, the cake can be kept in the fridge for 2-3 day.

  5. Djamila Author says:

    this cake looks so perfect and so delicious, I wanna try it, but we don’t have mascarpone were I live, what can I use instead? and can I replace walnuts wth peanuts? thank’s a lot

    1. Ella-HomeCookingAdventure Author says:

      Hi Djamila.

      You can use any other cream chesse instead of mascarpone and also can use walnuts.

  6. Imane Author says:

    This cake is out of this world. Thank you so much for all your recipe. I’m a big fan and love all your recipes. I would appreciate if you can help me and tell me what is the 9″ pan you are using in this recipe please.
    Thank you in advance,
    With all my gratitude

    1. Ella-HomeCookingAdventure Author says:

      Hi Imane.

      It's from Delicake Australia.https://www.delicake.com.au/shop-delicake-masters/

  7. Cherry Author says:

    First saw in Youtube and cannot help to try it out. It’s absolutely gorgeous, for both the looking and the taste! I love it and so do all my family and friends. Thank you so much for this great creation.

  8. vex 3 Author says:

    wow, the cake is beautiful and looks delicious

  9. Raushan Gupta Author says:

    This is one of the most beautiful and delectable cakes I have ever seen. Loved it. I would say this is a perfect treat for the party going to happen next week at my house.

  10. Faridabadcake Author says:

    Thank you for this AMAZING recipe! This is by far my most favorite recipe from Pinterest!

  11. Thanks for a great recipe. May i ask how long should i wait for the cake ready after take it out from the freezer?

    1. Ella-HomeCookingAdventure Author says:

      Hi Tim.

      The cake can be defrosted in few hours.

  12. Fran Author says:

    Absolutely beautiful cake. I am planning to try making this cake this month for my mom’s birthday. I am not the best cook so I hope it will turn fine. I have one question if you might know the answer: will the amount of ingredients be fine for 22cm for base layers and 26cm pan for the cake(mousse)? I only have these two sizes of pans, do you think there will be enough ingredients at least for mascarpone mousse and caramel mirror glaze or should I increase certain infredients?

    1. Ella-HomeCookingAdventure Author says:

      Hello Fran.

      Use the same quantities but the cake will not be as tall.

  13. Christine Author says:

    Beautiful Cake, wondering if I do not want to add coffee, do I have to replace it with something else, or can I just leave it out? Thanks

    1. Ella-HomeCookingAdventure Author says:

      Hello Christine.

      You can replace the coffee with vanilla. 

  14. Chris Author says:

    I am going to make this for Thanksgiving but need to assemble over this weekend. Should I glaze and decorate at the last moment (Wednesday night)? Or would the glaze and flower hold well over the week waiting for Thursday? Storing for that long, fridge or freezer? Thanks so much, this is truly an inspiring project and lovely combination of some of my favorite flavors.

  15. JohnB Author says:

    I made this, and it was both beautiful and delicious. One issue I had was the caramel walnut layer was very hard which made the cake somewhat difficult to cut and eat. Is there a way to soften the caramel, or did I do something obviously wrong?

    1. Ella-HomeCookingAdventure Author says:

      Hi John.

      You probably overcooked the caramel mixture that's why the caramel hardened.

  16. Maryam Author says:

    Hello dear,
    this cake looks so perfect and so delicious, I have plan to make it for my daughter in law baby shower party. Would you please let me know if I can make it ahead of time , freeze it and deliver it to venue ? Do you think it may fallen apart if needs to be in moving car for 30 minutes?

    Many thanks for beautiful and delicious ideas,

  17. Hi!
    I had a question. I do not have the 9-inch pan you used. Can I use a stainless steel mousse bottomless cake round instead?

  18. Hello! I would like to make this cake. I will have a lot of other things to bake at the same time so here is my question: Can I make this cake 4 days in advance and keep it in freezer until I’m ready to put the glaze and finish it?

    1. 5 stars
      Hello I love your cakes❤️ what can I add instead of cornstarch cause I don’t have it in my country?❤️

      1. Ella Marincus-HomeCookingAdventure Author says:

        use flour instead

  19. Martino Author says:

    I have made it on Sunday: it is absolutely fabulous! Thank you for inspiration!
    Looking forward to making more recipes!

  20. Made it. It was so delicious and looked very very nice.
    Thank you

  21. Claudia Author says:

    This cake looks amazing!
    We don’t like the taste of coffee in cakes.
    Is it possible to use Baileys instead?

  22. Brinda Author says:

    Thank you for the wonderful recipe????
    Can I replace walnuts with almonds.

  23. Lilia Author says:

    Hi Ella,
    I noticed that Delicake is larger than the baking pan and is allowing the mascarpone mousse layer to go all the way down to the bottom. My baking pan is 10″ in diameter and 3″ high and I don’t have a Delicake container. I am planning to put mascarpone mousse layer just on top of caramel walnut layer. Do you think I should reduced the size of of mascarpone mousse layer ingredients size in half, because it will be too much and can overflow? For example 8oz of mascarpone instead of 16oz, and etc…? Thank you in advance.

  24. Cecilia Author says:

    My water keeps evaporating in my sugar before it gets any color in it. What should I do!?

  25. Cheryl Taylor Author says:

    Hey, thanks for the great recipe. And, can I use cold brew coffee instead of instant coffee?

  26. Anita R Author says:

    Super easy to make just followed steps, cannot wait to taste

    1. Hi There, I’m in the process of making this cake, its in the freezer setting the mouse (such a fun cake to construct). Once I have added the mirror glaze, can I leave it in the fridge for a day or two before serving or will mouse melt?

      1. Ella Marincus-HomeCookingAdventure Author says:

        It is ok to let in in the fridge for a day or two. It won’t melt. Enjoy!

        1. 5 stars
          Thanks Lovely, cant wait to finish making this beautiful cake but more importantly eating it 🙂

  27. Marian Author says:

    Cake was simply AMAZING. Made it thrice. May I ask what brand of corn starch you used as the one we get here made the caramel layer very cloudy. Was a big hit with my family

  28. Hello, I really don’t like the idea of making cheesecake or mousse cake without baking. So just wondering if I can bake this cake like a regular cheesecake? Thanks

    1. Ella - Home Cooking Adventure Author says:

      I have many baked cheesecake recipes. I recommend trying those recipes. For instance try this amazing Pecan Cheesecake. https://www.homecookingadventure.com/pecan-pie-cheesecake/

  29. Hi Ella,

    Sorry if this is obvious but, would you serve it straight from the fridge? Or let it sit on the counter a bit before serving? Mine is in the freezer now so wondering what to do when the time comes, thanks!

    1. Ella - Home Cooking Adventure Author says:

      Let it thaw in the fridge and yes, serve it straight from the fridge.

  30. Hello Ella,
    I was wondering if it would be okay to make the cake in advance and keep it for three days in the freezer before finishing it with the caramel glaze? Thank you so much for the wonderful recipe!

    1. Ella - Home Cooking Adventure Author says:

      Definitely.. It is a great recipe to make in advance. You can keep it even more than 3 days in the freezer.

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