Cheese Cake - cooking recipe

Ingredients

1 1/2 c. graham cracker crumbs
1/3 stick butter or margarine
1 Tbsp. sugar
6 eggs, separated
3 (8 oz.) pkg. cream cheese
1 1/2 c. sugar
1 pt. sour cream
2 tsp. vanilla

Preparation

Combine first 3 ingredients and press into a buttered spring-form pan.
Bake in 350\u00b0 oven for 6 to 8 minutes.
Remove from oven; cool slightly.
Beat only egg yolks until bubbly.
Add softened cream cheese and mix on low until blended.
Add sour cream; mix well.
Gradually add sugar and mix until dissolved.
Add vanilla.
In a separate bowl beat egg whites until very stiff; add to cheese mixture.
Mix on low.
Pour into prepared pan.
Bake at 375\u00b0 for 45 minutes, then reduce to 275\u00b0 for 15 minutes.
Cool; cover.
Refrigerate overnight (approximately 8 hours).
The top should be a very dark golden brown and may crack (this is normal).