Royal Cheesecake - cooking recipe

Ingredients

Crust
1/2 cup margarine
1 1/4 cups flour, sifted
1 1/4 teaspoons baking powder
1/4 cup sugar
1/3 cup sour cream (or yogurt but I use sour cream)
1 egg yolk
1 pinch salt
Filling
4 eggs, separated
3/4 cup sugar
1 1/2 lbs cream cheese, room temperature
2/3 cup sour cream
1 teaspoon vanilla extract
2 tablespoons vanilla instant pudding mix
1 (14 ounce) can cherry pie filling, for top

Preparation

Crust Using a pastry blender or 2 knives cut cold margarine into flour, baking powder and sugar until pieces are the size of peas.
Stir in sour cream, egg yolk& salt.
Form into a ball& refrigerate for at least 1 hour.
Roll out into a circle to cover bottom& halfway up sides of a well-greased, 9 inch springform pan (you can also do this with your hands).
Filling Beat egg yolks until light, adding half the sugar.
Stir in remaining ingredients except egg whites, remaining sugar, and cherry pie filling.
Beat egg whites, gradually adding remaining sugar.
Beat until able to form stiff peaks.
Fold egg white mixture into cheese mixture.
Pour into crust.
Bake in a preheated 350\u00b0 oven for 45 minutes.
When cool, spread with a can of cherry pie filling.
Refrigerate.