Well a variation on a very famous chocolate cake recipe, it consists of four different parts.
Part 1 the cake.
8 oz (225 g) dark semisweet chocolate (40-50% cocoa)
2/3 cup (140 g) butter
1 cup (210 g) sugar
4 heaped tablespoons (1 dl) all-purpose flour
4 tablespoons unsweetened cocoa powder
1½ teaspoon baking powder or 1 teaspoon baking soda
1 teaspoon vanilla extract
4 tablespoons sour cream
Preheat oven to 350 deg F (Gas mark 4 or 180 deg C)
Line a circular 10 inch (25 cm) cake tin (3 inches tall) with grease proof or other non-stick paper and grease the tin. (Please note that the cake will rise to 3 inches and collapse somewhat when cooled. If your cake tin is less than 10 inches wide and 3 inches tall we recommend that you use two cake tins.)
Break the chocolate into small pieces and melt it with butter over hot water.
Beat the eggs with sugar, mix with flour, cocoa powder, baking powder and vanilla extract.
Slowly fold in the melted butter and chocolate and the sour cream.
Bake at 350 degrees until a wooden pick inserted in center comes out clean, approximately 40 to 50 minutes (if using 2 cake tins 20-30 minutes may be sufficient).
Cool the cake completely. When it has obtained room temperature place it in the refrigerator for at least 30 minutes before removing the cake from the tin (the cake is sticky and difficult to cut when it is warm!) Remove the crusted surface on the top of the cake, and cut in half, horizontally.
Part 2 the Ice cream.
For those of you without an Ice cream maker or a lot of patience, it may be easier to just buy some. But there are some nice methods to make nice Ice cream. Some of those can be found here.http://www.wikihow.com/Make-Ice-Cream
Part 3 The whip topping.
2/3 cup (1.6 dl) heavy cream or whipping cream
9 oz (260 g) semisweet chocolate (40-50% cocoa)
Heat 2/3 cup (1.6 dl) of heavy cream or whipping cream in a sauce pan.
Remove from heat, add 9 oz (260 g) of finely chopped dark semisweet chocolate, stir until smooth, and let it cool until in thickens.
Use one 1/3 of the frosting between the two layers, 1/3 on top, and the rest around the cake. Put the cake into the fridge for one hour or more to harden the frosting.
This cake should have room temperature when served.
Part 4 The chocolate syrup
1 cup unsweetened cocoa
2 cups sugar, or Splenda
1/4 teaspoon salt
2 cups cold water
1 tablespoon vanilla
Whisk together cocoa, sugar and salt.
Whisk in cold water
Cook over medium-low heat, whisking to combine, until thickened
Now once you have prepared all four parts, the last bit will be adding them together. Take a slice of the cake, and place it on a saucer or a plate. Put a scoop of the chocolate on top of it. Drizzle some of the sauce over it, and finally add the chocolate whip cream. Bon Apetit.