Bake the crust ... add the egg and vanilla, and process until the mixture is silky and smooth. (This should take less than 30 seconds.) Transfer the cheesecake mixture to the cooled crust, spread ...
Beat in the eggs, one at a time ... then spoon over the remaining mixture. Bake for 30 minutes, then open the oven door, pull the cheesecake out a little bit and sprinkle the crumble topping ...