New York Cheesecake - cooking recipe

Ingredients

1 lb ricotta cheese
1 lb cream cheese
1 1/2 cups sugar
4 eggs
1 pint sour cream
2 tablespoons lemon juice
3 tablespoons flour
1 teaspoon vanilla
3 tablespoons cornstarch
1/4 lb butter (real)

Preparation

grease sides of a 10\" spring form pan.
cream together ricotta and cream cheese.
add sugar and eggs.
beat until smooth.
add lemon juice, vanilla and mix.
add flour and cornstarch and mix.
melt butter,.
add butter and sour cream.
mix until smooth.
If you're adding chocolate chips, stir them in now with a spoon.
pour into pan and back at 325 for one hour.
turn off over, and leave cake in oven for another half hour.
If anyone finds the miracle of how to keep the top from cracking, let me know!