Monday 5 November 2012

Making Raspberry Jam

I made raspberry jam last night, and Danielle wanted to know how, so here you go:

Makes 5-6 1lb jars of jam.


4lbs Raspberries (frozen or freshly picked)
3lbs Jam Sugar (this is probably called something else in the US, where they call jam "jelly", but it's basically granulated sugar with added pectin and citric acid to aid setting)
A small knob of unsalted butter


  • Heat oven to GM2-3, 140C, 280F. Pop a saucer in the freezer.
  • Pick over your fruit and discard any leafy/mouldy bits. No need to wash the fruit as the boiling will sterilise it.
  • Put all fruit in a pan - ideally a jam pan with large bottom and plenty of surface area to help with boiling, but you can use a large normal saucepan if you don't have one.
  • Bring the pan to a simmer, and cook fruit for half an hour on the lowest heat you can, and at the same time, put the sugar in a metal container, cover and put in the oven to warm up. Wash up your jam jars if you haven't already.
  • After the fruit has cooked, take the sugar out of the oven and add to the fruit. While you're there, put the jam jars in the oven.
  • Stir the fruit and sugar as gently as you can (to minimise the fruit break-up that will happen) until the sugar has all dissolved. Once dissolved, a wooden spoon covered in jam will have no sugar crystals on the back.
  • Turn the heat up full and boil the jam for 5 minutes. Depending on your pan, you may need to scrape the bottom occasionally to stop the jam sticking. Take the saucer from the freezer and spoon a little bit of jam onto it - it should set quickly into a jam consistency. If it doesn't set, boil for another few minutes and repeat until it does.
  • Take the jam off the heat, and allow it to settle for 5 minutes. Get your jam covers and wax discs ready - I use a few sheets of soaked kitchen towel for wetting the cellophane covers, and remember - wax side of the paper discs faces down, wet side of the covers faces up.
  • Ladel the jam into the hot jam jars almost to the top (a jam funnel is really useful for doing this without mess), and cover immediately. Leave to cool.

Enjoy your jam with fresh toasted crumpets, oven-warmed croissants, scones with clotted cream or just a bit of bread and butter.