Ingredients:
For the cake:
50g cocoa powder
6 tbsp. boiling water
175g self raising flour
300g caster sugar
1 tbsp. baking powder
3 eggs
100g butter
4 tbsp. milk
Prepare a large baking tray (mine was 16x12 inches) by greasing and then lining with greaseproof paper. Set the oven to 180 C.
In a bowl, stir the boiling water into the cocoa powder to make a paste. Add the remaining ingredients and mix together. Pile the mixture into the prepared tray, smooth out flat with a spatula and bake for about 20-25 mins. until cooked through. Remove from oven and leave to cool.
For the milk chocolate ganache filling:
Break up 100g milk chocolate into a bowl. Heat 60ml double cream in a saucepan and just when it begins to boil, pour it over the chocolate. Stir until the chocolate is melted and leave to cool. Refrigerate for about 30 minutes until its quite solid. Then remove from the fridge and whisk with an electric whisk until smooth and creamy. Put into a piping bag (or a plastic bag with the corner cut off - I had to as have temporarily lost my piping bag!) Set to one side.
Using a heart shaped cutter, cut hearts out of the sponge and place onto a board. Pipe the ganache onto half of the hearts, leaving a hole in the middle. Fill the hole with a teaspoon of cherry preserve or jam (jelly to the US readers). Top with the un-piped sponge hearts. Use leftover milk chocolate ganache to fill in any gaps in the sides. Don't worry if it looks messy as it will be covered with the dark chocolate ganache.
For the dark chocolate ganache coating:
Break 200g dark chocolate into a bowl and heat up 200ml double cream. Pour the cream over the chocolate and stir until all the chocolate is melted. Leave to cool for about 4-5 minutes. Place the filled hearts onto a wire rack placed over some greaseproof paper. Pour the dark ganache over the cakes, covering all sides. If you have let the ganache get too cold, to pour, just pop it in the microwave for a few seconds. Then to finish, shave some milk chocolate over the tops and pop in the fridge for an hour to set.
Now you can serve!