In a mixing bowl, combine the softened cream cheese, lemon zest, lemon juice, white sugar, and vanilla.
Beat with a hand mixer until smooth. Alternatively, blend the mixture in a blender until smooth.
In a separate clean bowl, using clean beaters, whip the chilled evaporated milk until frothy and fluffy.
The whipped milk will not become as thick as whipped cream, but it should become light and foamy.
Add the chilled sticky lemon gelatin mixture to the cream cheese mixture.
Beat or blend until smooth and fully combined.
In a large mixing bowl, gently fold the whipped evaporated milk into the cream cheese and gelatin mixture.
Continue folding until the mixture is fully combined and uniform in texture.