Yummy chocolate log

Name: Yummy chocolate log
Prep time: 30 min
Cook time: 10 min
Total time: 40 min
Cuisine: British
Ingredients: 3 eggs; 85g golden caster sugar; 85g plain flour (minus 2 tbsp); 2 tbsp cocoa powder; ½ tsp baking powder; 50g butter, plus extra for the tin; 140g dark chocolate , broken into squares; 1 tbsp golden syrup; 284ml pot double cream; 200g icing sugar, sifted; 2-3 extra strong mints, crushed (optional); icing sugar and holly sprigs to decorate - ensure you remove the berries before serving