Chocolate Chip Cookie Dough Cheesecake

1-1/2 cups finely crushed oreo cookie crumbs 1/4 cup melted butter 2 8-oz. pkg. cream cheese, softened 1 cup sugar 1 cup sour cream 3 eggs 1 tsp. vanilla 1/4 cup softened butter 1/4 cup brown sugar 1/4 cup sugar 2 Tbsp. water 1 tsp. vanilla 1/2 cup flour 1 cup mini chocolate chips 1 cup sour cream 2 tsp. sugar 1 tsp. vanilla Preheat oven to 350 degrees. Mix crumbs and 1/4 cup melted butter in medium bowl and press in bottom and 1/2" up sides of a 9" springform pan. In large bowl, combine cream cheese and 1 cup sugar. Beat until smooth. Add sour cream, eggs, and 1 tsp. vanilla and beat until well blended. Pour onto crust. In small bowl, combine 1/4 cup butter, brown sugar, 1/4 cup sugar and beat until combined. Add water, 1 tsp. vanilla and beat well. Stir in flour and chocolate chips until combined. Drop this cookie dough in 1 Tbsp. portions evenly over cheesecake surface. Gently push dough beneath the surface. Bake in a 350 degree oven about 35-40 minutes until cheesecake jiggles slightly when gently pushed. While cake is baking, combine 1 cup sour cream, 2 tsp. sugar, and 1 tsp. vanilla in a small bowl and spread this topping over the hot cheesecake when it comes out of the oven. Let cake cool on wire rack, then chill in refrigerator 4-6 hours until cold. Serves 12