posted by Carol on Nov 19
Serves 10 - Many people make a chestnut stuffing for the Christmas turkey, but did you know that chestnuts beautifully complement the taste of chocolate making this a good dessert for Christmas?
Ingredients
Sponge
1 egg
90g/3oz sugar
15g/1/2oz plain (all purpose) flour
15g/1/2 oz cocoa powder
3 tbs water
Mousse
30ml/1 fl oz water
3 egg yolks
90g/3oz caster sugar
120g/4oz plain (semi-sweet) chocolate
300g/10oz can of chestnut purée
3 leaves of gelatine (or 1-1/2 gelatine powder)
1 tbs rum
375ml/12 fl oz double (heavy) cream
Decoration
200ml/6-1/2 fl oz double (heavy) cream
3 marrons glacés
a little cocoa powder
Method
1. Preheat oven to 180 deg C/350 deg F. Grease and flour a 7 inch diameter cake tin (pan) with a removable bottom (Springform are best).
2. To make the sponge: put about 1/3 of the caster sugar and the egg in a bowl and whisk until they double in volume. Sieve the flour and cocoa together then fold in to the sugar and egg. Put into the cake tin and cook for about 12 minutes or until firm. When cooked, cool on a wire rack then clean and line the cake tin with a double layer of non-stick paper. When the cake is cool, replace it in the cake tin.
3. Put the remaining sugar, rum and water into a saucepan and dissolve the sugar slowly, stirring continuously. Once the sugar has dissolved, bring the mixture to the boil for one minute without stirring. Pour the mixture evenly over the sponge in the cake tin.
4. To make the mousse: Slowly dissolve the sugar in the water in a saucepan, stirring continuously. Once the sugar has dissolved, stop stirring and boil until a little of the mixture (about 1/4 tsp) holds its shape when dropped into iced water but is still soft to the touch.
5. Whisk the egg yolks, preferably using an electric mixer. Pour the boiling syrup into the mixer boil while continuing to whisk. Keep whisking until the mixture is completely cold.
6. Break the chocolate into pieces and melt (see techniques).
7. Stir the canned chestnut purée into the melted chocolate.
8. If you are using gelatine leaves, put them into a bowl of of cold water, just covering them. If you are using gelatine powder, dissolve it in 1-1/2 tbs of water.
9. Warm the rum in a saucepan, squeeze out the gelatine leaves and place them, or the dissolved gelatine powder, in the rum. Make sure the heat is very low. Shake the saucepan to dissolve and mix the gelatine. Cool the mixture then strain it into the chocolate and chestnut and fold it in.
10. Whip the double (heavy) cream until the whisk leaves a trail then fold it and the chocolate mixture alternately into the egg yolks and syrup. Mix well so that all three mixtures are well combined and there are no pale streaks through the chocolate colour.
11. Pour the mixture on top of the rum soaked sponge in the cake tin (pan). Tap the tin on the work surface to disperse any bubbles. Smooth the surface and then chill in the refrigerator for at least 3 hours but preferably overnight.
12. Unclamp the Springform tin and remove it. Whip the cream until it holds its shape and decorate the top of the mousse either by spreading it over and lifting it into peaks or by piping on a pattern. Cut up the marrons glacés and use them to decorate the top too. Finish off the decoration with a light sprinkling of cocoa powder.