Cherry and Chocolate Tart - River Cottage

Ingredients

• 350g sweet cherries, stoned or 200g dried cherries
• 150ml kirsch or brandy
• 30g caster sugar
• A strip of lemon zest
• 170g plain flour
• 30g cocoa powder
• 100g butter, chilled and cut into 1cm cubes
• 2 tablespoons caster or icing sugar
• 1 free-range egg yolk
• About 2-3 tablespoons cold milk (or water)
• 250ml double cream
• 200g dark chocolate (about 70% cocoa solids), chopped
• 1 vanilla pod
• 2 large free-range eggs, lightly beaten
• 3-4 tablespoons morello cherry jam