Chocolate orange cake

  • Preparation Time60 mins
  • Cooking Time40 mins
  • Serves150
  • DifficultyMedium

For the chocolate ganache

1L double cream
1.35kg semi-sweet chocolate

For the chocolate cake

910g unsweetened chocolate
900g unsalted butter
3.6kg brown sugar
32 eggs
3 tbsps pure vanilla essence
1.58kg soft flour
4 tbsps baking powder
2 tsps salt
1.8kg sour cream
1.8 litre boiling water

For the orange cake

4 tbsps finely zested orange peel
24 egg yolks
1L milk
1 tbsp pure vanilla essence
2 tbsp pure orange essence
560ml pure orange juice
675g butter, room temperature
1.2kg cake flour
1.35kg sugar
4 tbsps baking powder
1 tbsp salt
For the chocolate ganache:

1) In a large saucepan bring cream to the beginning of a boil. Remove from cook top. Add chocolate (in chunks).

2) Stir until completely combined. Cool to room temperature before filling cakes. Set aside to cool.

For the chocolate cake:

1) Preheat oven to 160C/Gas 3. Butter and flour cake pans of choice.

2) Melt chocolate and set aside to cool to room temperature.

3) Beat butter and brown sugar until fluffy (about 4 minutes on medium). Add eggs and vanilla and continue to beat until thick and creamy (about 6 minutes on medium). Add chocolate on low and mix until combined.

4) Wisk dry ingredients together. Add 1/3 dry ingredients alternately with 1/3 sour cream beginning and ending with dry ingredients. Add boiling water and mix only for 30 seconds, scrape bowl and mix the rest by hand. Immediately pour into pans 2/3 full. Bake until tester comes out clean in center of cake, about 30 minutes for 9-inch round, more or less for other size cake pans.

5) Cool for 1/2 hour before removing cakes from pans. Wrap in plastic wrap and cool in the refrigerator. When totally cold, unwrap cakes and fill with chocolate ganache.

For the orange cake:

1) Preheat oven to 160C/Gas 3. Butter and flour cake pans of choice.

2) With a zester, zest the orange part of the peel of a fresh orange but do not zest the white section of the peel. Measure 4 tablespoons.

3) Combine yolks, 370ml milk and essences. Set aside. Combine dry ingredients in mixer and mix on low. Add 670ml of milk, orange juice, butter and orange zest to dry ingredients and mix on low for 2 minutes. Beat on high for an additional 3 minutes.

4) Turn mixer to low and add yolk mixture in 3 batches, mixing for 40 seconds on low each time. Fill buttered and floured cake pans 1/2 full. Bake until tester comes out clean and center springs back when lightly touched. Cool in pans for 20 minutes.

To assemble the cake:

Layer cake as follows: 1 layer chocolate cake, chocolate ganache, 1 layer orange cake, chocolate ganache, 1 layer chocolate cake. Frost as desired.

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