Mix coffee and 100 ml hot water. Let the coffee cool down. Mix cold coffee and liqueur
Place the lady fingers side by side in a flat form (approx. 15 x 28 cm). Drizzle the coffee-amretto mixture evenly over the sponge fingers and leave to soak in for approx. 10 minutes
For the cream, mix quark, mascarpone and orange juice until smooth. Season to taste with sugar. Spread the cream over the biscuits and smooth it down. Dust the tiramisu with cocoa. Cover the biscuits, preferably overnight, put them in the fridge and let them soak through
Decorate tiramisu as desired with thin spirals of orange peel. An espresso, for example, tastes good with this