I think this tart is best served with some seasonal soft fruit, such as blueberries, raspberries or strawberries. And maybe a cup of tea or coffee!
  Ingredients:
  
    - 140 g unsalted butter 
 
    - 150 g quality dark chocolate (70%) 
 
    - 8 tablespoons quality cocoa powder 
 
    - 4 large free-range eggs 
 
    - 200 g caster sugar 
 
    - 3 tablespoons golden syrup 
 
    - 3 heaped tablespoons soured cream , or crème fraîche 
 
    - 1 x 25 cm flan or tart shell, baked blind 
 
  
  Method: (6 Steps)
  
    - Preheat the oven to 150°C/300°F/gas 2. 
 
    - Place the butter, chocolate, and a small pinch of sea salt in a heatproof bowl over a pan of simmering water. Sift in the cocoa powder, then allow everything to melt slowly, stirring occasionally until well mixed. 
 
    - In a separate bowl, beat the eggs and sugar together until light and well creamed, then add the golden syrup and soured cream. 
 
    - Stir your chocolate mixture into this mixture, scraping all the chocolate out with a spatula. Once you've mixed it well pour it into the pastry shell. 
 
    - Bake for 40 to 45 minutes. During cooking a beautiful crust will form on top. 
 
    - Carefully remove the tart from the oven and allow to cool on a wire rack for at least 45 minutes, during which time the skin with crack and the filling will shrink back slightly.