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This Royal Walnut Cake is as pretty as it is irresistibly delicious! The Russian buttercream frosting made with sweetened condensed milk is tantalizingly good! Keep an eye on the whisk that mixes the cream – someone else will surely try to lick it! Ha! Truly it’s delicious and like no other buttercream you’ve tried before!
This recipe is sponsored by Fisher Nuts and the cake is loaded with toasted walnuts which infuse the cake with rich flavor. I kept the decorations simple so even if you’re not super skilled in the cake decor department, YOU CAN DO THIS!!
You could simplify it even more by omitting the ganache and just coating in finely chopped nuts all around which would be beautiful but I thought the ganache was a nice touch for the holidays and a flowing layer of chocolate sauce never hurt anyone! 😉
Big thank you to our friends at Fisher Nuts for sponsoring this recipe – I trust Fisher brand because they don’t use preservatives and are non GMO project verified! Its the nuts and only nuts – just like you had popped them out of the shell yourself, minus all the effort and blisters. lol. You’ll recognize the right nuts by their bold blue “Fisher” brand bags.
Watch How to Make this Royal Walnut Cake:
Since the frosting is a buttercream, it is best served at room temperature when the frosting is soft. You can make this cake even 2 days in advance, cover and refrigerate and then bring to room temperature before serving. I have this same cake in the freezer (saving it for Christmas!) I just love make-ahead desserts and if you’re into that sort of thing, you’ll be surprised this dessert is also freezer friendly!
Everything about this cake is good. Simple, but so good! I hope it makes your holiday’s more merry and bright!
Royal Walnut Cake (VIDEO Recipe)

Ingredients
For the Walnut Cake:
- 2 cups walnuts, halves and pieces
- 6 eggs, (large), room temp
- 1 cup granulated sugar
- 1 cup all-purpose flour
- 1/2 tsp baking powder
For the Russian Buttercream:
- 3/4 cup sweetened condensed milk, (2/3 of a 14 oz can)
- 2 egg yolks, (large)
- 1 Tbsp water
- 1/2 tsp vanilla extract
- 1 1/2 cups unsalted butter , (3 sticks), softened at room temperature
For the Simple Cake Syrup (stir these ingredients together):
- 1/4 cup granulated sugar
- 1 cup warm water
- 3 Tbsp rum, I used Bacardi golden rum*
For the Chocolate Sauce/ Ganache:
- 4 oz semisweet chocolate chips, (1/4 lb by weight, or 2/3 cup by dry measuring cup)
- 1/2 cup heavy whipping cream
Instructions
How to Make the Royal Walnut Cake:
- Toast 2 cups walnuts on a dry skillet over medium/high heat until fragrant and golden (5 minutes), tossing often. Cool to room temperature then finely chop or pulse in food processor.
- Preheat oven to 350˚F. Line the bottoms of two 9" baking pans with parchment paper (do not grease the pan). In the bowl of a stand mixer fitted with whisk attachment, beat eggs for 1 minute until foam. With mixer on, add 1 cup sugar in a steady stream then beat on high speed 8 minutes. Batter will be fluffy and a thick ribbon will form when you lift up batter.
- Whisk together 1 cup flour and 1/2 tsp baking powder and sift it into the egg mixture in 3 increments. Gently fold in 1/4 of your cooled chopped nuts and divide batter evenly between 2 prepared pans. Bake right away in fully preheated oven at 350˚F for 23-28 min(I find it's perfect at 25 min). Let rest in the pans 5 min then run a thin spatula or knife around the edges of pan to loosen cake and transfer cakes to wire rack to cool completely to room temp.
How to Make Russian Buttercream:
- In a small sauce pan, off the heat, whisk together 2 egg yolks, 3/4 cup condensed milk, 1 Tbsp water, and 1/2 tsp vanilla until smooth.
- Place over low heat. Continue stirring frequently and stir constantly as it starts to thicken – DO NOT BOIL. When it’s ready, it will be the consistency of uncooked sweetened condensed milk. Total time on the stove: 5-7 minutes. Remove mixture from heat and let custard cool completely to room temp. It will thicken more as it cools.
- Beat softened butter in a mixer with whisk attachment for 5 minutes on high speed until white and fluffy, scraping down the bowl as needed. Add room temp custard mixture 1 heaping Tablespoon at a time, beating on high speed for a few seconds with each addition. Once all of the custard is incorporated, scrape down the bowl and beat another 2 minutes on high speed. Reserve 1 cup of cream and set aside (you'll use this to coat the top and sides of cake). Fold in 1/4 of your toasted cooled nuts into remaining big batch of cream.
Assembling the Walnut Cake:
- Line the edges of a cake platter with strips of parchment paper (this will make cleanup easier). Place first cake layer on the platter and spoon half of the syrup evenly over the top. Top with all of your walnut buttercream and spread evenly. Add the next cake layer and spoon the remaining syrup over the top. Coat the sides and top of the cake evenly with remaining 1 cup of buttercream.
- Apply the remaining finely chopped walnuts to the sides of the cake only, scooping it on with your hand and gently pressing for the nuts to adhere to the frosting. Now make your ganache (see below). Once ganache has rested 5-10 minutes, spread it evenly over the top of the cake, allowing some of it to drip down the sides of the cake. Let cake rest until ganache is set (you can refrigerate 30 min if desired).
How to Make Chocolate Ganache:
- Place 1/4 lb of chocolate chips in a heat-proof bowl. Pour 1/2 cup heavy cream into a small saucepan and bring to a simmer. When it's just at a uniform simmer, pour over the chocolate chips ensuring chocolate is fully submerged in cream. Cover bowl with lid and let sit at room temp 15 min then whisk until a silky chocolate sauce forms. Let ganache rest 5-10 min to thicken slightly but still be loose enough to pour over the cake and drip down the sides.
Notes
Nutrition Per Serving
If you make this recipe, I’d love to see pics of your creations on Instagram, Facebook and Twitter! Hashtag them #natashaskitchen
This is a sponsored conversation written by me on behalf of Fisher nuts. The opinions and text are all mine. I hope this beautiful walnut cake gives you great holiday inspiration!!
We are all about generous slices! I hope you and your family love this Royal Walnut Cake!
Hi Natasha
I am out of butter 🙁 is there anything else I can use for the cream?
Hi Elizabeth, you would have to use an entirely different frosting since this one really relies on the butter to work…
Hi Natasha, I don’t have two 9” pans can I use a 1 (10-Inch) Springform pan for this recipe?
Hi Hirah, your cake won’t be as tall and you will only be able to get 2 layers but you can put the full batter into the springform and bake about 30 minutes.
Hello thank you for this recipe. I am preparing this cake for my mom’s birthday but we don’t drink alcohol. Anything else to substitute that sauce to add to the two cakes. Thank you
Hi Sarah, you can just use a simple syrup of sugar water, or add a little lemon juice also for extra flavor. You can also use a light colored juice, like white grape juice.
Hi Natasha:) I tried to make this cake yesterday night and put it in the fridge for next day. It’s been sitting out from the fridge for the past two hours but cream it’s not that soft? Also I didn’t like the taste of rum any other alternatives maybe? I will give it on more try to this cake. Also how long does it take for the cream to come back? Thank you
Hi Mariam, a butter cream does firm up in the refrigerator and softens once it has reached room temperature again. If you prefer to keep it liquor free, you can just use a simple syrup of water and sugar or add a splash of lemon to it for more flavor.
I was wondering if can use gluten free flour for the recipe?
Hi Bianca, I haven’t tested it but several of my readers have reported great results making the sponge cake base with gluten free flour 🙂
Yes,using gluten free flour should work fine.just have to eat the cake within 2days though,otherwise it will get hard(which is very common using gluten free flours).cheers
The buttercream, is it allowed to be made in advanced and stored in fridge? If so, how much in advance? Thank you!
Hi Julie, that would work except you will have to bring it back to room temperature and then whip it until softened. Since you can’t whip it with the nuts, I would leave them out and fold the nuts in after re-whipping your frosting.
Thank You! Would you know how many days its good for to sit in fridge until ready to use?
Hi Julie, I would keep it in the refrigerator up to 2 days before serving for maximum freshness. I have also frozen the entire cake for a month (it would probably last up to 3 months) and it thawed and tasted great after freezing also. Just a tip for freezing – make sure you refrigerate the cake first for the frosting to firm up and it will be easier to package in the freezer 🙂
I’m not sure if it’s just me but is it a mistake that the recipe (the printer version) mentions adding sugar twice when making the batter??? Awesome recipe by the way! Loving it so far!
You’re totally right! It should say beat eggs 1 min until foamy then add 1 cup sugar gradually. I’ve fixed it. Thank you so much for catching that!! 🙂
Hi Natasha,
I don’t have walnuts, but have a plenty of pecans. Do you think I can substitute? Usually it works, like in carrot cake.
Thanks
Maria
Hi Maria, I think pecans would work great 🙂
Hi Natasha, I just discovered your website and loved reading your recipes. I am of Russian background as well but can only boast of borscht, piroshki and blini in my repertoire…I came to America when I was 10, very long ago. Your walnut cake looks fantastic and I will try it. Can you tell me which part of the Ukraine you are from? My mother came from Slaviansk. All the best, Xenia
Welcome to my blog!! I’m so happy you discovered it :). I am from Krivoy Rog, Ukraine 🙂
I made this one couple of times for our family parties, and every time it was a hit! Love every bite of it!
I’m so glad you and your family love the recipe! 🙂 Thank you for sharing your amazing review! 🙂
Natasha, love your website and recipes! I want to try this cake this weekend so for religious purposes I don’t drink alcohol what do you think I could use instead of rum? Thanks
You can substitute by making a simple syrup with water, sugar and lemon juice and it will work well 🙂 You can also use juice or just sugar water if you prefer 🙂
You can buy substitute rum flavoring in any grocery store at baking aisle.
Natash I must say you are a great teacher your instructions are precise and clearly stated I love your recipes great job.
Thank you Sharon! I appreciate the great compliments and I’m happy to hear how much you enjoy the recipes! 🙂
I haven’t heard of Russian butterceam, but it does sound delicious! Pinned and shared! Thanks for sharing!
You’re welcome! This cake is heavenly, let me know what you think if you decide to make it please!
hi natasha:) we don’t have any rum. do you think it will still taste good if i don’t add rum?
Hi Alina, yes that will work great 🙂
Hi Natasha!
I prepared this cake for my sister’s 50th birthday. It was my first cake ever and everyone loved it! And two days later, as a suprise from my husband, I got my own KitchenAid mixer, also my first ever 🙂
So thank you fror your great recipes – I’m gonna try even more now.
I’m so happy for your success and how fun to get a new mixer!! I’m sure you’ll grow to love it. It makes baking easier for sure! 🙂
Hi Natasha. I made this cake on several occasions . it so easy to make it following your directions. My husband normally doesn’t like anything with chocolate, but he really liked this cake and constantly talks about this cake ( how good it was ))) and what really surprised me my mother in law who tasted probably every single cake in a world said that it was the one of the best ones she tasted , and added that this cake was probably very hard to make. thank you for the awesome recipe !!
You’re welcome! This cake is so decadent. I am happy to hear how much your family enjoys it!!
Hi, I guess we here in Europe need some specification about what is “cup” …especially when backing cakes. Thank you for your recipies!
Hi Oksana, here’s a good general reference but 1 cup of flour is about 120 to 125 grams.
Hi Natasha! The recipe looks amazing but I am confused that there is no buttter or oil in the cake, is it like this or am I missing something🤔 Thanks for the help
Hi Shamia, the classic European sponge cake does not require butter or oil. The eggs provide the fat content and act as a leavening when whipped properly.
Hi Natasha, I am going to make this cake for my grandmas birthday, but I have just one pan. Can I bake it in one and then cut it in half? Probably the baking time will need to be adjusted.. Or is it better to bake one half, get it out of the pan and bake the second half? Thanks 😊 Looks amazing! Cant wait to try it..
Hi Timea, I think you could make it work if you had a tall pan like a springform pan with 3″ tall walls. It would overflow 1 pan. Also, this cake needs to be baked right after the flour is folded in. If you let half of the batter sit on the counter, it will deflate and not rise properly. If you wanted to bake in a regular 9″ cake pan, I would suggest cutting the recipe in half and making it twice, or borrow a second cake pan from a neighbor to save yourself some trouble :). Happy birthday to your grandma!! 🙂
Thank you very much Natasha. the cake turned out amazing, grandma loved it, and it was a huge success. 🙂 (shared on Instagram #natashaskitchen). As I realized I wouldn’t fit in 2 pans in my small European oven even if I wanted to, I went with a tall, 9,5″ springform pan, with a little less than 3″ walls. I left it in the oven for 40 minutes and thankfully it didnt overflow. it was just perfect! thanks again for this great recipe.
That is fantastic! I’m so glad it was a huge success! Thank you for sharing your awesome review!
Quick question, could I cut the 2 cake(biskvit) layers in half to make 4 and put frosting in between each or would I not have enough frosting?
Thanks in advance
Hi Tanya, you could have enough frosting if you just divide that center frosting into 3 but you would have pretty thin layers of cream between. I liked the impressive look of 1 thick layer of cream but either way it would taste good and I often cut these cake layers in half to make 4 layers 🙂 Enjoy!
Made this cake as a delicious present for my mom who’s birthday happened to be on 24 December! All relatives were gathered and everyone loved it!!! Now, this weekend is my grandmother’s birthday and she asks the same cake 😉 (no more cakes from russian stores:))))
Thank you so much for the recipe, Natasha! May God bless you!
That’s so great Alla! I love hearing reviews like this. Thank you for sharing and God bless you! 🙂