I have posted one pic on the bottom it's not that great because it's an old pic but you can see how she would make it.
4-1/4 cups whole milk
4oz corn starch
1 cup sugar
1 lemon peel
In a pan add the milk then dissolve sugar and corn starch in the cold milk, medithen place over medium heat and let it boil, stirring constantly with a wooden spoon make sure you stir the bottom of pan or it will burn. When it gets thick remove from heat, and remove the lemon peels, pour in mold or in single-portion cups then place in the refrigerator for at least 6 to 8 hours.
If you want chocolate pudding add cocoa powder to the cold milk at the same time you add with the sugar and corn starch.