Marital Bliss Chocolate Cheesecake

1 1/2 c chocolate cookie crumbs
6 T butter
4 8-ounce packages light cream cheese, softened
1 cup sugar
1 T flour
5 eggs
1/2 cup light sour cream
12 ounces chocolate chips, melted
2 teaspoons vanilla

Mix chocolate crumbs and butter together and press into 9" spring form pan. Bake at 350 for 10 minutes. Cool.

Mix together cream cheese and sugar. Beat in flour. Add eggs one at a time, mixing well after each. Beat in sour cream. Blend in melted chocolate and vanilla. Pour over cooled crust. Back at 425 degrees for 15 minutes. Lower oven temperature to 300 degrees and back for an additional 45 minutes. Turn off the oven and allow the cheese cake to remain in the cooling oven for 1 hour. Remove from oven and cool completely. Keep refrigerated.