1 3/4 c. graham cracker crumbs
1/3 c. butter, melted
1/4 c. sugar

In bowl, combine crumbs, butter and sugar. Press on bottom and sides (2 1/2 inches up) of an 8 inch springform pan. Set aside.

CHEESE FILLING:

5 (8 oz.) pkg. cream cheese
1/4 tsp. vanilla
3/4 tsp. grated lemon or orange peel
1 3/4 c. sugar
3 tbsp. flour
1/4 tsp. salt
4-5 lg. eggs (1 c.)
2 egg yolks
1/4 c. whipping cream

Let cheese soften at room temperature 1-1 1/2 hours. Beat until creamy. Add vanilla and peel. Mix next 3 ingredients; slowly blend in. Add eggs and yolks one at a time. Beat after each just to blend. Gently stir in whipping cream.

Turn into crust lined pan. Bake at 450 degrees for 12 minutes; reduce heat to 300 degrees for 55 minutes. Allow to cool. Loosen sides with spatula after 1/2 hour. Cool well before adding a topping.