Step 1: Dissolve 1 cup white sugar over moderate heat to caramelize it. Then pour evenly on bottom and sides of molder. Set it aside.
Step 2: Preheat oven to 375 deg F. In a mixing bowl, combine egg yolks and whole egg.
Step 3: Add 1/2 cup sugar, lemon rind and milk. Mix thoroughly but gently so as not to form air bubbles.
Step 4: Pour into prepared caramel-lined pan. Put the pan in a large, shallow baking pan containing water. Bake in the oven for 45 minutes.