NEW YORK CHEESECAKE                    Servings:

Crust:
1   tsp.      grated lemon             1   c.    sifted flour
1/4 c.        sugar                    1/2 tsp.  vanilla extract
1   tsp.      grated orange peel       1         egg yolk
1/4 c.        butter

Filling:
8   oz.       cream cheese             1 3/4 c.  sugar
3   T.        flour                    2   tsp.  grated lemon peel
1 1/2 tsp.    grated orange peel       1/4 tsp.  vanilla extract
1/4 c.        heavy cream              5         eggs
1/2 c.        sour cream               2         egg yolks

    Preheat oven to 400F.  Grease inside of 9 or 10 inch springform pan
with butter.

Crust: Combine flour, sugar, lemon peel and vanilla, then blend in yolk
and butter.  Mix with fingertips until smooth.  On bottom of pan, form
half of dough into a ball.  Hand-press into bottom.  Bake 6-8 minutes or
until golden.  Cool.

Filling: Blend cheese, sugar, flour, peels and vanilla at high speed.
Beat in eggs one at a time.  Add yolks and beat until smooth, occasionally
scraping bowl.  Beat in whipping and sour creams.  Pour in pan and bake
10 minutes at 400F, then 1 hour at 250F.  Turn off heat for 10 minutes,
then take out of oven and cool on rack for 2 hours.  Refrigerate overnight.

Source: Sara Lee?