A quick and easy cheese cake recipe

Yield : 6 servings
Prep. Time :5 minutes
Cook Time : 40 minutes
Total Time : 45 minutes

Ingredients:
16 ounces cream cheese, 2 packages, softened
½ cup sugar
½ teaspoon vanilla
2 large eggs
4 ounces semi-sweet chocolate chips
1 prepared Graham cracker crust

Directions:
Beat cream cheese, sugar and vanilla at medium speed until well-blended. Blend in 2 eggs. Stir in chocolate chips then pour batter into Graham cracker chust. (you may sprinkle ¼ cup mini semi sweet chocolate chips on top if you desire).
Bake at 35calcius for 40 minutes, or until certer is almost set. Cool.
For best results refrigerate for 3 hours.

How many persons is the cake for?