Tiramisu with biscuit

12 ounces mascarpone cheese (about 1 1/2 cups) 8 ounces ricotta cheese (about 1 cup) 1/2 cup granulated sugar 2 tablespoons brewed espresso 2 tablespoons[...]

75 g caster sugar 500 g Quark 5 tablespoons skim milk 1 large vanilla pod , split and seeds scraped out 3 tablespoons Kahlua 4 tablespoons strong black coffee[...]

75 g caster sugar 500 g Quark 5 tablespoons skim milk 1 large vanilla pod , split and seeds scraped out 3 tablespoons Kahlua 4 tablespoons strong black coffee[...]