1. Cream the butter, sugar and cornstarch together

2. Add the egg yolks , one at a time, beating after each addition

3. Whip the mixture until it is very fluffy

4. Stir in the cup milk, juice and the rind of the lemon

5. Pour in the stiffly beaten egg whites

6. Line a pie dish with pastry

7. Bake the dish in a moderate oven for about 5minutes

8. Pour in the lemon filling

9 Return the dish to the oven and bake in moderate heat for another 35minutes or until it is delicately browned

List of ingredients required:

1/ 2 cup butter
1 cup sugar
1 tablespoon cornstarch
3 egg yolks
3 egg whites, stiffly beaten
1 cup milk
Juice and rind of 1 large lemon