In a blender, mix milks and lemon juice until smooth.
Line the bottom of a 9”x13” glass dish with ladyfingers. Trim ladyfingers in order for them to fit in a single layer. Pour a layer milk mixture over ladyfingers, making sure the cookies are completely covered. Freeze for approximately 3-4 hours or until set. Garnish with lemon zest.
For Individual Servings: