MAKE THE CRUST

Cup of Yum
1. Put the cookies in a blender and blend until they are reduced to a powder. If you do not have a blender, you can do this manually by placing the cookies in a bag and crushing them with a rolling pin.
2. Melt the butter in a double boiler.
3. Place the crushed cookies in a bowl and add the melted butter, then mix vigorously until completely combined.
4. Line the bottom and sides of an 20 cm (8 inch) diameter cake pan with baking paper.
5. Pour the butter and cookie mixture into the pan, using a spoon to spread it evenly on the bottom and sides. Press well and refrigerate.

MAKE THE FILLING

1. In a large bowl, beat the whole eggs and sugar with an electric whisk.
2. Add the mascarpone and ricotta cheeses and continue to mix.
3. Add the heavy whipping cream, the juice of half a lemon and a tablespoon of cornstarch.
4. Grate some lemon zest if you like. Mix everything together evenly.
5. Pour the resulting mixture into the cookie and butter crust. Level the cake pan and tap it lightly on the table to release any air bubbles and even it out.

THE BAKING

1. Transfer to a preheated oven at 160°C (320°F) and bake for 1 hour and 15 minutes. Check that the cake is done by inserting a toothpick into the center of the cake and seeing if it comes out dry.
2. Remove from the oven and cool at room temperature and then in the refrigerator for at least 3 hours (or overnight). While cooling, small cracks may form on the surface and the cake may sag slightly in the center, but this is perfectly normal.
3. When the ricotta and mascarpone cheesecake is completely cooled, you can remove it from the cake pan, transfer it to a serving platter, and start thinking about toppings and final decorations.

THE TOPPING

1. Stone the cherries using a Cherry pitter tool and set aside.
2. Spread a layer of cherry jam over the top of the cheesecake. Be sure to spread the jam evenly. Just a thin layer is enough. Don't overdo it or it may be cloying.
3. Place the pited cherries on top of the jam, which will act as a glue. You can fill the entire surface or leave gaps. The cherries can be arranged randomly or according to a pattern. In short, use your imagination to decorate!
4. Finally, dust with a very small amount of icing sugar and enjoy!