Orange and Chocolate Marble Cheesecake

1 box Chocolate Wafers - (9oz)
6 tablespoons melted butter or margarine
3 packages cream cheese -- (8oz)
1 cup sugar
1 1/2 teaspoons vanilla extract
5 eggs
2 ounces melted semisweet chocolate
2 teaspoons grated orange peel

Mix the melted butter and the cookie crumbs. Set aside 1/2 C. of the mixture. Press the rest on the bottom and 1 1/2" up the sides of the pan. Put in the refrigerator while you do the rest. Beat the cream cheese, sugar, and vanilla in a large bowl at medium speed with mixer. Add one egg at a time.

Remove 1 C of the batter and add the reserved the crumbs. Set aside.

Stir the orange peel into the remaining batter and pour into the refrigerated crust.

Top with spoonfuls of chocolate batter. Using a knife, swirl batter into marble.

Bake at 300 degrees for 50-60 minutes or until set. Cool in the pan on a wire rack. Refrigerate for at least 4 hours. Release from spring form when ready to serve.