Ron Weasley’s chocolate gateau mentioned in Harry Potter and the Half-Blood Prince, a sinfully delicious chocolate cake layered with a chocolate-double cream filling.
A really magical day yesterday. My husband and I had our 11th wedding anniversary and to celebrate that we decided to go out eating and then to the cinema with the kids to see Fantastic Beasts and Where to Find Them. We got home just in time to see Harry Potter and the Half-Blood Prince on TV and I spent the night dreaming about Harry Potter and Newt Scamander. No kidding, it was the first time I’ve ever dreamt about Harry Potter and I loved it, I woke up remembering so much of the dream…
If you are a Potterhead like I am then you just have to see the new film. It has nothing to do with Harry but it is still so great to be able to sink into this magical world again after such a long time. I loved every minute of the film, my children were delighted, all they were talking about on the way home was about buying the DVD the minute it’s available so that they can watch the film again. I actually wouldn’t mind going to the cinema again, so that I can see the film in 3D again, it was amazing.
What can I tell you about this chocolate cake? It is my favorite chocolate cake. I have been making this for at least 5 years now, not only for us, but most of the time for other people. I have two families, who have been ordering this cake for every family celebration they have for the past 4 or 5 years now, so I am making this cake about 7 or 8 times every year, there is no other cake that I get to bake so often. I don’t even have to check the recipe anymore, it is the only cake recipe I know by heart.
I found the recipe for the cake somewhere on the Internet, but it is such a long time ago, I really don’t remember where, I would be happy to give a source if I knew one. The chocolate filling recipe was given to me by my mother-in-law, she used to make this filling for the chocolate cakes they used to sell in the bakery/confectionery they used to have when my husband’s father was still alive.
The cake looks really impressive, one would think you’d have to spend a lot of time in the kitchen and use some fancy ingredients to make it, but don’t worry, making this particular cake is a “piece of cake”, everything is stirred in no time and the filling must be one of the easiest I know. And the taste is just amazing: chocolate, chocolate, chocolate, a dense moist cake sandwiched with this wonderful, luscious chocolate cream. My interpretation of the chocolate gateau Ron Weasley stuffs his face with at the start-of-term feast in the 6th book of the series.
And if you would like to have a look at other Harry Potter inspired recipes, here they are:
Hagrid’s Rockcakes with Mixed Dried Fruits
Fruit Mince Pies with Homemade Mince Pie Filling
Moist Chocolate Gateau or Cake with Chocolate Cream Filling
Harry Potter’s Pumpkin Pasties
Moist Chocolate Gateau or Cake with Chocolate Cream Filling
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Ingredients
- For the filling:
- 500 ml/ 17 fl.oz/ 2 cups double cream
- 100 g/ 3.5 oz milk chocolate*
- 100 g/ 3.5 oz dark chocolate*
- 2 packets Dr. Oetker cream stabilizer
- For the cake:
- 210 g/ 7.4 oz/ 1 ¾ cups all-purpose flour
- 400 g/ 14 oz/ 2 cups sugar
- 85 g/ 3 oz/ ¾ cups unsweetened cocoa powder
- 2 teaspoons baking soda
- 1 teaspoons baking powder
- ½ teaspoon salt
- 250 ml/ 8.4 fl.oz/ 1 cup buttermilk
- 120 ml/ 4 fl.oz/ ½ cup vegetable oil
- 2 eggs (large Germany, extra-large US)
- 1 teaspoon vanilla extract
- 250 ml/ 8.4 fl.oz/ 1 cup hot coffee
Instructions
Filling:
Start one day in advance by making the filling. Chop the chocolate very finely. Pour the double cream into a small pot, carefully bring to a boil, take off the heat and give the chocolate to the cream. Stir slowly until the chocolate has melted. Place a piece of plastic foil directly over the chocolate cream (so that it doesn’t form a “skin”), let the mixture get cold, then place it in the fridge until the next day.
You could bake the cakes one day in advance as well. Let them get cold and then wrap them in cling film to prevent them from drying out.
Cakes:
To make the cake start by preheating the oven to 180 degrees Celsius/ 360 degrees Fahrenheit. Ligthly butter and flour 2 springforms or cake pans of 20 cm/ 8 inch diameter. Brew one cup of strong coffee.
In a large bowl mix and sift the flour, sugar, cocoa powder, baking soda, baking powder and salt.
Combine the buttermilk, oil, eggs and vanilla extract preferably in a jug or in another bowl. Pour this mixture, slowly, over the dry ingredients whisking with an electric mixer at very low speed.
Add the hot coffee and stir with a spatula very shortly until the ingredients are just combined. Make sure to scrape the bottom of the bowl as well in the process. Divide the mixture into two equal parts (I use the scale to make sure I divide the mixture evenly) and pour into the two prepared forms.
Bake for about 40-45 minutes until a toothpick inserted in the middle of the cake comes out rather clean, it can still be a bit wet, but it should not be covered in chocolate. Let cool in the pan for a while, than transfer the cakes to wire racks to cool completely.
When the cakes are cold, cut each one into two equal slices. Beat the chocolate-double cream mixture while slowly adding the cream stabilizer until stiff.
Place one cake layer on a cake platter. Evenly spread 2-3 tablespoons of the chocolate cream on top of it, place the second cake layer on top and continue in this manner. Cover the cake with the remaining chocolate cream.
Notes
Note: For a genuine taste I recommend using German/European style chocolate (Milka, Cadbury, Belgian or Swiss chocolate), I have heard that the American chocolate tastes very differently.
Others you might like:
Mirror Glaze Chocolate Zucchini Cake
14 comments
Happy anniversary! Sounds like a fun day. I love Harry Potter, chocolate cake, and any reason to celebrate with chocolate cake. This looks divine and I can see why it’s a favorite!
It looks amazing! I love the look of those black sponge layers. Happy anniversary! xx
It looks beautiful! Happy Anniversary!
This is a chocolate lover’s dream come true and so beautiful! I can see why you have lots of requests for it!
Happy Anniversary, Adina! What a lovely cake to celebrate!
I am not a porterhead fan but my daughter is. She went to watch the first show of this new movie with her friends.
deeeeeply dark chocolate cake and a super smooth frosting too! this is perfection. 🙂
Wowww …todo con chocolate me encanta,que delicia es una gran torta,gracias por su comentario la espero siempre,abrazos.
That’s so funny that you dreamed about this cake before making it. Now I’ll be dreaming about it. 🙂 What an OMG cake!!!! Death by chocolate for sure. So lovely.
Adina, we are Potter fans at my house, too. We haven’t seen the movie yet, but it is on our list of things to do this weekend, along with putting up the Christmas tree and cleaning house in anticipation of my folks flying out to visit. I think Ron’s cake looks simply amazing and I bet it tastes amazing, too. I love the addition of the coffee to enhance the chocolate flavor and the buttermilk to balance the sweet and give the cake moisture and a bit of a lift. Outstanding.
Hi,
Looks delicious! Can you tell me what size cake tins you used?
Thanks
Hi Cheryl. Two springforms of 20 cm/8 inch diameter.
hi! complete amateur here, I’ve only ever baked cupcakes – horrible – but I’m a huuuge HP fan and your amazing description (not to mention droolworthy photos) totes made me want to try this. some questions:
1) I have the sugar in everything I bake eg cookies and was thinking of cutting this to 300g, do you think it would be ok?
2) can I substitute the baking powder w baking soda (and vice versa) and how should it be done?
3) do you bake both cakes at the same time? our oven isn’t very big and I don’t think it can fit two 8 inch cake tins at the same time 🙁 is stacking possible?
thanks a lot Adina!!
Hi Sunny. I am glad you want to bake the cake, it is an amazing chocolate cake and actually well suited for beginners in baking. To your questions:
1. You can reduce the sugar quantity a little, but normally sticking to the required quantities when baking is always best. Unlike cooking, baking is almost chemistry and requires precission, if you change the quantities and the ingredients, the result will not be as expected. However, in the case of this cake, I had used less sugar the first times I have made it and although I find the texture of the cake better when the whole quantity of sugar is used, the reduced sugar version was ok as well. If you are worrying that the cake is too sweet, don’t, for some reason, although there is so much sugar in it, the cake is not overly sweet. Must be all the bitter chocolate and the coffee.
2. No, you can definitely NOT substitute baking powder for baking soda, they have different effect on the cake. Use always as required by this or any other future recipe.
3. I bake the cakes together because I have a convection oven. I put two racks in the oven and place each cake pan on a rack. If you don’t have a convection/hot air oven and the cake pans don’t fit together one next to the other (not stacked) in the regular oven, then it is better to split the recipe and mix the batter twice. If one cake waits so long to be baked, it will not rise anymore in the oven, so it is better to only make the batter just before you can put the cake in the oven.
I hope this helps, if you have more question, do ask. 🙂
Thank you so much Adina! I will try it out with help from my friend this weekend, super excited! 🙂