1. Combine ground vanilla wafers and vegetable oil.
2. When the mixture is the consistency orf moist cornmeal, you have added the right amount of oil.
3. Spray springform pan with baking spray and dust with flour. Discard any not being used.
4. Press wafer mixture around all edges and bottom. bake crust at 300 F for a few minutes to set the crust.
5. Beat cream cheese until smooth, add Splenda. Occasionally scraping sides. Add eggs in one at a time, add the vanilla and low fat sour cream.
6. Pour batter into pan and bake at 300°F for 40 minutes.
7. Sauce, in a small sauté pan cook molasses and oil until mixture is warm, add lemon juice, banana extract, orange juice, and cinnamon. Bring to a boil and simmer for 10 minutes. Turn down to low and add Bananas. Serve sauce over cooled cake.