To prepare crust, take a medium-sized bowl and put cracker crumbs and sugar in it. Take butter and melt it and pour it into the bowl. Mix the butter with sugar and crumbs until well mixed.
Add the mixture into the base of a 9-inch springform container. Refrigerate until the filling is prepared.
Now, take a large bowl and blend the cream cheese, vanilla, and powdered sugar with an electric blender. Blend the mixture until perfectly stirred, and mixture has formed the shape of a smooth and light texture.
Now, mix the sour cream and the prepared mixture of cream cheese, vanilla, and powdered sugar. Mix them well for a good 4-5 minutes. Spread the mixture equally into the crust.
You can cover the pan with a plastic wrap, and 4 hours or overnight refrigerate is recommended.