Orange Marmalade - cooking recipe

Ingredients

4 thick skinned oranges
1 lemon
3 pints cold water
granulated sugar as needed

Preparation

Slice oranges and lemon very thin and remove only the seeds. To each pound of sliced fruit add 3 pints of cold water.
Let stand in a cool place for 24 hours, then boil until skins are tender. Set aside for 24 hours.
Weigh.
To each pound of mixture, add 1 1/2 pounds granulated sugar and boil until it jells.
Skins are transparent.