Direction :

1. Place ricotta in a sieve over a bowl and let drain for 1 hour.
2. Triple wrap the bottom and sides of 3×10-inch springform pan with aluminum foil. Butter the sides, bottom and rim of pan. Mix the smashed or grated cookie crumbs with 1 teaspoon sugar and coat the pan.
3. Preheat the oven to 350ºF. Fill a teapot with water and bring to a boil. Place the mascarpone in the bowl of an electric mixer and beat until light. Transfer to a small bowl; then add ricotta and lemon zest to bowl of electric mixer. Beat at low speed until smooth. Beat in the eggs one at a time until smooth. Beat in the remaining 1½ cups sugar. Continue to beat until mixture is very smooth. Beat in the mascarpone, vanilla and lemon juice. Pour into the pan and smooth the top.
4. Place the pan inside a roasting pan whose sides are not higher than the cake pan. Open oven and pull rack out halfway — make sure it’s stable. Place pan on rack, then pour in the boiling water from the teapot into the larger pan to within 1 inch of the top of the smaller pan. Bake for one hour and 15 minutes. Test with finger — the top should spring back a bit. Give the pan a shake — if the batter ripples under the surface too much, it probably needs more time. It should be slightly golden on top. Note: Cooking times will vary dramatically depending on your oven, the pan you are using for the water bath and what type of fresh ricotta you are using. Start checking at 1 hour and 15 minutes. If you have a Thermapen (highly recommend!), use it to test the temp of the cheesecake, and remove the cheesecake when the thermometer reads 150-155ºF. The cheesecake may take 30-40 minutes longer, so just be patient. 
5. Remove and let cool to room temperature in the water bath. Refrigerate overnight or for at least 4 hours before serving. It will firm up as it rests.
6. To unmold, slide a thin knife around the cake edges. Release the sides of the springform pan. Refrigerate until serving.