200g (7 oz) graham crackers or digestive biscuits
100g (½ cup) unsalted butter
250g (1 cup) mascarpone cheese
200ml (¾ cup) heavy cream
100g (½ cup) powdered sugar
¼ cup limoncello liqueur or lemon juice
Zest of 2 lemons
1 tsp vanilla extract
Fresh lemon slices or zest
Mix crumbled biscuits with melted butter. Press this mixture evenly into the base of a springform pan and chill for 15 minutes.
Beat mascarpone cheese, powdered sugar, and vanilla extracts until smooth and fold in whipped cream, limoncello and lemon zest.
Spread mascarpone mixture evenly on the chilled base and smooth the top. Cover and refrigerate for 4 hours or overnight.
Decorate the cake with lemon slices, edible flowers and lemon zest then serve chilled.