Orange Lemon Grapefruit Marmalade - cooking recipe

Ingredients

3 oranges
1 lemons or 1 lime
3 grapefruits (total fruit weight 1 . 5kg)
1 1/2 liters water (equal to whole fruit)
1 1/2 kg sugar (equal to cooked fruit)

Preparation

Squeeze juice from fruit and keep.
Slice fruit thinly.
Quickly wash sliced peel in cold water and rinse.
Add water and juice.
Keep for 3 hours in a cool place.
Cook in a heavy saucepan for 30 minutes medium heat.
Add sugar and cook and stir another 20-30 minutes on high heat.
Pour into sterilised jars.