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Chocolate orange cake

35 ratings

A simple all-in-one chocolate orange cake, is covered with an indulgent chocolate ganache. Deceptively easy to make and a treat for any occasion.

If you are short of time to decorate the cake, simply melt the chocolate into the cream as below, then use around a quarter to fill the cake and the rest to cover; creating swirly patterns with the palette knife rather than going for the more-time consuming smooth effect. For this recipe you will need two 20cm/8in loose-based sandwich tins.

Ingredients

For the candied orange zest

For the chocolate icing

  • 300ml/½ pint double cream
  • 300²µ/10½´Ç³ú dark chocolate (about 70% cocoa solids), broken into roughly 1cm/½in pieces (see recipe tip)
  • 2–3 tbsp semi-skimmed milk

Method

  1. Preheat the oven to 190C/170C Fan/Gas 5. Grease and line two 20cm/8in loose-based sandwich tins with baking paper.

  2. Mix 50g/1¾oz of the cocoa powder with the just-boiled water to make a smooth, thick paste. Stir in 2 tablespoons orange juice.

  3. In a food processor or freestanding mixer, add the butter, sugar, eggs, flour, baking powder, remaining cocoa powder, orange zest and the cocoa paste and pulse or beat until well combined, thick and creamy. Do not over-blend or the cake will be tough rather than light. Spoon the mixture evenly into the prepared tins and smooth the surface. Bake on the same shelf in the centre of the oven for about 25 minutes, or until well risen and just beginning to shrink back from the sides of the tin.

  4. Remove the tins from the oven and leave to cool for 5 minutes before turning out on to a wire rack. Peel off the baking paper and leave to cool completely.

  5. To make the candied orange zest, use a vegetable peeler to peel long, wide strips off the half orange, avoiding the white pith. Cut the zest into long thin matchsticks and place in a small saucepan with the sugar and 50ml/2fl oz water. Bring to a simmer and cook for about 5 minutes, or until the zest is softened and the sugar syrup is well reduced and lightly coating the zest.

  6. Line a small tray or plate with baking paper and use a fork to lift the orange zest from the syrup and drop onto the paper, keeping the strands separated. Leave to set for at least 1 hour before using to top the cake.

  7. To make the chocolate icing, gently heat the cream in a medium non-stick saucepan until hot but not quite simmering, stirring occasionally, then pour over the chocolate pieces. Stir once and leave to stand for 5 minutes. Stir the melted chocolate into the cream just enough to combine – don’t over-stir or the mixture could become oily. Leave to cool for 5 minutes.

  8. Place one of the sponges on a wire rack over a large plate or tray (to catch any excess icing so it can be reused). Spread a quarter of the chocolate icing thickly over the surface and top with the second sponge. Mix a tablespoon of the milk with another quarter of the chocolate icing (about 135g/5oz) in a small bowl until smooth. Using a palette knife, spread the whole cake thinly with the thinned chocolate icing, filling in the areas where the two cakes meet. Place in the fridge for about 40 minutes to set. (This layer will help the rest of the icing cover the cake more smoothly and doesn’t need to be perfectly neat.)

  9. Once the first layer of icing has set, stir the remaining 2 tbsp milk into the remaining chocolate icing, until smooth and shiny. Spread the icing all over the top of the cake and down the sides as smoothly as possible using a palette knife. Leave for 2–3 hours to set and then carefully transfer to a cake stand or plate and top with the candied orange zest. (You can also leave it to cool a little and then create a swirly rather than a smooth topping on the cake.)

Recipe Tips

If you don’t have a food mixer to make the cake, simply put all the ingredients in a bowl and beat hard with a wooden spoon until creamy and soft.

Oranges tend to be coated with wax, which is why you need to scrub them before zesting.

If you want to add orange flavour to your icing, use orange flavoured dark chocolate or add a few drops of orange extract.