INGREDIENTS
3
Eggs, large
1 tsp
Baking powder
1 tsp
Baking soda
135 g
Brown sugar
200 g
Caster sugar
60 g
Cocoa powder
200 g
Dark chocolate, good quality
245 g
Plain flour
2 tsp
Vanilla extract
240 milliliters
Sour cream
240 milliliters
Thickened or heavy cream
120 milliliters
Water, hot
250 g
Ram (1 cup and 1 tablespoon) unsalted butter, room temperature