Blueberry and Grape Jam
1oz Butter
800g Grapes
(any colour)
2 Desert Apples
Juice of 1
Lemon
1.5kg / 3lb
Sugar
2lb / 800g
Blueberries
This will make 3 jars with a capacity of 500g / 1lb
Wash grapes and
add to pan with juice of lemon and roughly chopped apples (no need to peel.)
Add enough water to cover and simmer for 2-3 hrs and then strain overnight. You
should have roughly 1 pint of juice.
In a large pan heat sugar, grape juice and blueberries to a
rolling boil. Stir occasionally till the boil is achieved and measure set point
with a thermometer. This is a wet jam so ensure enough liquid boils off before
bottling. Whilst this is happening sterilise the jars in a moderate oven. Pour
the jam into the hot, sterilised jars; add wax caps if you want, and let it
cool. Label with date and use within 6 months.
Tip:
Don’t trust the
thermometer reading (I always go 1 -2 degrees higher) - check the jam set on a
cold plate placed in the freezer. Allow to cool and push your finger across the
surface. If it is ready it will wrinkle and appear congealed. However at the
end of the day it will be always be a softer set jam.