If the fruit is waxed, prepare it by putting in a colander and pouring boiling water over. Give the skin a good scrub and pat dry.
4 Oranges, 4 Lemons, 1 Grapefruit
Cut the fruit into quarters and remove the skin from the fruit. Using a sharp knife remove the pith from the peel.
Cut the peel into short strips lengthways and then widthways to obtain similarly sized pieces of peel. Weigh the peel, you should have around 450grams.
Place peel in the saucepan with the water, bring to the boil then cover and simmer for 1 hour.
2300 ml Cold water
Remove from the heat and drain over the large mixing bowl, reserving the water. Measure the water, you will need 5¾ cups. Top up with cold water if required. Return the water to the saucepan.
Add 900 grams (4½ cups) of sugar to the water and bring to a gentle boil, simmering until the sugar has dissolved (approximately 10 minutes).
900 grams Caster Sugar
Add the peel to the large mixing bowl and pour over the sugar syrup. Allow to cool before covering and leaving to soak for 24 hours.