In a large bowl combine the sugar, flour and cornmeal. Blend well, then add the eggs and combine well. Add the milk and mix then stir in the melted butter, lemon rind and juice,Pour this filling into the crust and cover then edge of the crust with foil to prevent it from burning, taking care not to touch the filling. Bake at 165*c for 20 minute, remove the foil after 15 minute,Cool and serve with garnish of your choice.