This was posted in response to a request for a low-fat cheesecake recipe. It's very quick and easy to make, and tasty too. Use low-fat cheese but don't use a totally non-fat cheese or the texture will be a bit "gritty."
Melt the butter in the pan in which the cheesecake is to be baked (8"x8".) Remove it from the heat and stir in the graham cracker crumbs, until the butter is evenly distributed and the mixture is crumbly.
Press it evenly and firmly along the bottom and 1/2 inch up the sides of the pan.
Bake the crust for 10 minutes at 350°F.
Reduce the heat to 325°F.
Allow the crust to cool.
Meanwhile, put the sugar and the flour in a large mixing bowl with the salt.
Grate the lemon zest and add it to the sugar and flour.
Beat the eggs into the sugar.
Add the lemon juice, then the buttermilk, and lastly beat in the ricotta cheese. Occasionally if the cheese is very dry and crumbly I have a hard time beating it in smoothly; in that case I put it in the food processor and process for 5 minutes or so until the mixture is very smooth.
Pour the batter into the crust and bake for 1 hour at 325°F.