----~ Designer Dessert ~---- (
November)
Black Belt Cake
A good friend of mine recently held a reception for his 25th year anniversary of obtaining black belt in karate. The guy is a total martial art nut and has his own martial art/japanese culture shop, and he's pretty much the top innovator of the Danish scene of martial arts single-handedly. So what do you give a man who's at the top of his field? You bake him a cake of course! There could only be one vision, a cake resembling a black belt, and I knew this meant that I had to venture into the world of fondant for the first time. I decided to let it be a small step and have the fondant decoration be as minimal as possible, just a white gi collar and a black belt. Then a buttercream as the main body. I admit that I still got some work to do with making my buttercream as smooth as fondant, but I'll take the taste of a rich buttercream over fondant anyday.
The inside had to be black currants of course, between two layers of the best chocolate cake I know.
One challenge I ran into was to make the buttercream white. Or white enough that it wouldn't look odd next to the white fondant. I did several tests including white food gel, light butter, but in the end the dangerous sounding tip of using violet food coloring worked the best. The violet color apparently cancels out the yellow dye of the butter, and you end up with a perfect white buttercream.
The black belt was very pleased
~Recipe~
Yields: 18x28cm cake ~30 servings
Ingredients
Chocolate Cake
150 g unsalted butter, room temperature
375 g sugar
3 eggs
½ tsp vanilla extract
75 g cocoa powder
1½ tsp baking powder
1½ tsp baking soda
pinch of salt
250 g flour
225 ml whole milk
Black Currant Mousse
400 ml cream
300 g black currant
140 g sugar
5 gelatin sheets
Juice from half a lemon
Lemon Swiss Meringue Buttercream
150 g egg whites
250 g sugar
300 g unsalted butter, cut into cubes and cool, but not cold
1 tsp lemon oil
Violet food coloring
Fondant decoration
250 g black fondant
150 g white fondant
Directions
Chocolate Cake
- Preheat oven to 170°C. Grease a rectangular adjustable baking form measuring 20x30cm placed on parchment paper on a large cookie sheet.
- Mix butter and sugar until light and creamy, about 5 minutes on high speed.
- Add eggs one at a time, mixing well and scraping down unmixed ingredients down from the sides after each egg.
- Turn down the speed and mix in vanilla and cocoa, baking powder and soda and salt until well mixed.
- Add half the flour then all milk, then finish mixing in the remaining flour. Mix well until the batter is uniform.
- Pour half of the batter into the prepared pan and bake for 20-25 minutes or until a wooden stick comes out clean. Let the cake cool slightly in the form before transferring it to a cooling rack. Clean the form and bake the other half of the batter. Once cooled down, slice the layers so they will fit in a form of 18x28cm.
Black Currant Mousse
- Soak gelatin sheets in a small bowl of water for 15 minutes.
- Blend black currants and sugar to a purée. Pour into a large bowl.
- In another bowl, whip cream to soft peaks.
- Drain the gelatin sheets from water and place in a small saucepan together with the lemon juice. Melt over low heat or a hot waterbath. Once melted, stir into the black currant purée.
- Then add 1/3 of the whipped cream to the black currant purée and fold. And the remaining whipped cream and gently fold, until incorporated.
- If a bit too runny, cool 5 minutes in fridge. Place a chocolate cake layer in the 18x28cm form then pour over the mousse. Carefully place the second cake layer, making sure it's even. Cool in fridge for 4 hours.
Lemon Swiss Meringue Buttercream
- Over a hot waterbath gently whisk egg whites and sugar in a medium bowl(or that of a stand mixer), till it reaches a temperature of 70°C. Take it off the bath and beat at high speeds until it becomes a thick and glossy meringue, around 10 minutes. The bottom of the bowl should feel neutral to the touch, too warm and the butter will melt.
- Mix on low speeds while adding butter cubes one at a time. The cream should have a silky smooth texture. If too runny refrigerate for about 15 minutes, and mix until the texture is right.
- Add the lemon oil and dip a tooth pick in the violet food color and wipe it off into the buttercream and mix. You may need to dip another tooth pick to get the correct color.
- Remove the form from the cake, cut off some of the cake where you want the waist/belt to be so that it curves slightly. Start applying a thin layer of buttercream on all sides and refrigerate for 20 minutes so that the 'crumb coat' hardens. Then apply the rest of the buttercream and smooth the edges as good as you can. Cool an additional 30 minutes before applying the fondant.
Fondant decorations
- Knead the white fondant first. Dust some cornstarch on a working counter and roll out a thin line so that you eventually can cut out a line of 3x45cm. With a pizza cutter, gently roll out two lines to give the effect of seams. Place white collar on cake and cool in fridge while working with the black fondant.
- Knead the black fondant. And roll out thin lines that need to be 4cm wide, and 3 'seams' added. The biggest piece will be 35cm long and will run over the 'waist'. Then two straps that will be roughly 15cm long, and finally a small piece which together with the straps will form a fake knob.
- Let the finished cake set overnight.