625 ml (2-2½ cups) strong espresso, cooled to room temperature
4 large eggs or 5 small/medium eggs, separated
4-5 tbsp sugar (one tablespoon per egg) I use a regular spoon to measure – if you use a measuring spoon it will taste sweeter (personal preference).
500 g (16 oz) mascarpone cheese, room temperature
1 200-250 g (7-9 oz) pkg Savoiardi or Pavesini (lady fingers) These are known as Löffelbiscuits in Germany.
2 tbsp unsweetened cocoa powder (or to taste) Again, I use a regular spoon but a measuring spoon will also work.