Chocolate Chip Cookie Dough Cheesecake
["1 1/2 c. finely crushed chocolate wafer cookie crumbs (about 30)", "1 c. sugar", "1/4 c. melted butter or margarine", "2 (8 oz.) cream cheese", "1 c. sour cream", "3 large eggs", "1 tsp. vanilla", "Cookie Dough (recipe follows)", "Topping (recipe follows)"]
["Mix crumbs, 2 tablespoons sugar and butter; press firmly over the bottom and 1/2 inch up sides of a 9-inch cheesecake pan with removable rim.", "Bake at 350\u00b0 until slightly darker, about 8 minutes."]
["chocolate wafer cookie crumbs", "sugar", "butter", "cream cheese", "sour cream", "eggs", "vanilla", "Topping"]