Seville Orange Marmalade

• 3 lb (1 kg 350 g) Seville oranges
• juice of 2

Scrub the oranges well and pick off the small disc at the stalk end. Cut the fruit in half and squeeze out the juice and pips. Quarter the peel and cut away any thick white pith. Shred the peels finely. Cut up the white pith coarsely and tie loosely in a large square of muslin along with the pips. The bag should be loose so that the water will circulate through the pith and pips, and extract th