In the jar of a blender, add the eggs, cottage cheese and sour cream. Process until smooth, Incorporate the cream cheese, sugar, vanilla extract, cornstarch and salt, and puree again until fully incorporated.
Remove the crust from the refrigerator, pour the mix from the blender on top, jiggle a few times for it to spread evenly. Place in the oven and bake anywhere from 55 minutes to an hour until set. A toothpick inserted in the middle should come out just moist, but not with any of the filling covering it.
Remove from the oven. The cheesecake will be very puffed up. As you take it out of the oven it will settle and deflate a little, and cracks may appear on its surface, which is totally normal. Set aside and let cool.