Jan-Feb - get in there quick, but only choose the firm fruit. Small is good + more peel to pulp.
If you have a Pressure Coooker:
MARMALADE
4lb SEVILLES
3.5pt WATER
1 LEMON
6lb SUGAR
Wash Fruit & Pressure Cook in water for 15 min.
Cut up & save pips & membrane in muslin bag
Heat Sugar/Water, with bag, till dissolved & then to 220F.
Add Oranges/Lemon & cook fast to set point – 220F. Usually when the mix gets sluggish.
Many small grocers no longer stock them - they are all left to rot because people no longer do their own thing. Sad!