Cheesecake: In a large bowl, beat cream cheese until smooth. Gradually mix in 1 1/4 cups sugar, 1/3 cup whipping cream, flour and 1 teaspoon vanilla. Beat in eggs, one at a time beating after each addition. Pour 1/3 batter into pan, top with cookie pieces; pour in remaining batter on top. Bake at 350 45 minutes. Remove cake from oven. Combine sour cream, 1/4 cup sugar and 1 teaspoon of vanilla and spread evenly on cheesecake. Continue to bake for an additional 10 minutes. Turn oven off and leave in oven 30 minute more. Remove cheesecake and let cool completely on wire rack.