Take the zest from the orange with the vegetable peeler
Take the juice from the orange
Thinly slice ginger
Put sugar, vinegar, orange zest, juice, ginger bay leaves and peppercorns in pan.
Bring slowly to the boil, stirring constantly until the sugar is dissolved.
Boil for 5 mins
Peel, core, half, quarter pears.
Add to pan and poach gently for 10-15 mins (should be just tender)
Remove pears with slotted spoon
Pack into sterilised Kilner jars
Boil vinegar mixture to reduce by third, then pour over pears
Tightly close jars - keep any vinegar to top up jars as pears will absorb some vinegar.
Store for up to 2 months