How to make chocolate cake

Ingredients
4 oz (120 g) semisweet dark chocolate (40-50% cocoa)
5 eggs
¾ cup (165 g) sugar
½ cup (1.2 dl) vegetable oil
1 cup (2.4 dl or 110 g) all-purpose flour
1 teaspoon baking powder
1 teaspoon vanilla extract
3 tablespoons (0.45 dl) water


Ingredients for Glace and Frosting
12 oz (350 g) apricot jam
2 tablespoons butter
7 oz (200 g) semisweet dark chocolate (40-50% cocoa)

Method
Preheat oven to 350 deg F (Gas mark 4 or 180 deg C) and grease a 9 inch (23 cm) cake tin, lightly dust with flour.
Break the chocolate into small pieces and melt it with the water in a double boiler (over hot water).
Separate egg whites and egg yolks. With an electric mixer whisk the eggs whites until forming stiff peaks, add gradually half of the sugar while mixing.
In a separate bowl whisk the egg yolks with the remaining sugar for one minute using the electric mixer. Add gradually the vegetable oil, one tablespoon at a time, whisk well between each time oil has been added. Add the melted chocolate and mix well. Transfer to the bowl containing the whisked egg whites.
Sift in the flour and baking powder, add vanilla extract. Fold everything carefully together using a spoon or a rubber spatula.
Transfer to the cake tin and bake at 350 degrees until a wooden pick inserted in center comes out clean, approximately 45 to 60 minutes.
Leave the cake to cool in the tin, it is recommended to place it into a refrigerator for at least one hour before slicing. When completely cold, remove the top of the cake, and slice the cake through the middle to make two layers.
Use half of the jam to sandwich the two layers together. Coat the torte thinly with the remainder of the jam. If possible, wrap the cake with plastic and put it into the refrigerator for 1-3 days before adding the chocolate icing.
Break the chocolate into small pieces and melt it with butter in a double boiler (over hot water).
Let the mixture cool to room temperature, and spread it evenly over the torte.
Place the torte in the refrigerator to harden the frosting.
Variations
If you prefer a thicker apricot jam filling, add more jam between the two layers; you can also add some gelatine to the melted jam if you want a more jelly-like filling. You may also use your preferred chocolate frosting