When making plum jam either the plums can be halved and stones removed before cooking or you can remove them with a slotted spoon while it’s boiling (they float to the top). If the stones come away easily I would recommend doing that…the other way can take ages.
Plum Jam:
1 kg plums
1 kg sugar
250 mls water
Wash the plums and de-stalk if necessary. Sterilise jars by heating in a slow oven for 1/2 hour at least. If using metals lids sterilise these by boiling in water for 10 minutes.
Put plums in a large pot with the water and cook about 30 – 45 minutes (lid on) till pulpy. Stir in sugar and boil gently until thickened and test a little in a saucer in the fridge, if it comes out with a skin on top it will set. Makes around 7 – 8 smallish – med jars. 
quarteracrelifestyle 
Mmmmm . . . Mum and I used to make dozens and dozens of jars of jam. All sorts, including plum. Nice, isn’t it?
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I make very little jams Linne, only because we rarely eat it, we aren’t big toast or baking eaters. Homemade beats commercial hands down. I only made this batch because I was visiting my sister and knew she liked it, and my son got some 🙂 My favourite would be apricot I think, can’t resist that if someone is offering 🙂
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It was a dying art Wendy, so I am really pleased to see you sharing your recipe. Your descriptions of what to do took me right back to the days when I would be preserving and making jam flat tack at this time of the year……..I used to test readiness by putting a drop of jam from the pan into a saucer of cold water [from the fridge] – if it ‘skinned’ then it was ready to go into the jars. 🙂
I am so impressed that you still make it even though you don’t eat it much – and what a lovely homemade gift to give out!
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It must be the ‘tried and true’ kiwi method 🙂
I used to make batches and batches when the kids were all at home, still love it just don’t really eat what it goes on!
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I have a plum tree on my property:-) I put it in a few years ago. Your jam looks so good!!! Your food pictures above make my mouth water-YUM!
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It has not produced any plums, forgot to mention that:-( It is about 7 feet tall right now and 2 yrs old.Is there hope?
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Hi Robbie:) Our two plums trees are around 3 years old and have still not fruited so I don’t really know, peaches seem to fruit young but the plums just sit.
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Hi Wendy. My mum used to leave the stones in and so us kids would always try see who got the most in their sandwiches! I’d forgotten that until I read your post!
Cheers Sarah : o )
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Lol, that’s cute 🙂
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my mum always used to do it with the stones in…I always remember crunching into one unexpectedly.
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Yes, same lol. And sucking them till no taste of jam left. The original sweet maybe 🙂
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Yum. You have my mouth watering for plum jam now. I haven’t made it for three years as I am determined to get through the blackberry and boysenberry jam on my shelf. Plum trees apparently do not do well in this part of North Carolina. (Phooey) I wonder if your trees and Robbie’s tree aren’t producing because they need cross-pollination by a different variety of plum? That’s true with apples, so, who knows?
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Plum jam has to one of the nicest jams I think 🙂
I am not sure about the pollination thing, I did have a huge old one at another house and there were no others in our section, maybe further away? I am hoping the bees will help with fruit tree pollination from now on.
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We don’t eat a lot of jam here. A jar can last us a year (with the exponentially green fuzzy mould to prove it 😉 ) but mum used to give us as many jars of plum jam as we could load in a wheelbarrow whenever we would visit her. I prefer to eat my plums straight from the tree or dried but plum jam is always going to hold fond memories of mum for me 🙂
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We are the same here, though I made that toast and jam for the photo and really liked it lol. Not the healthiest way to eat them 🙂 I used to make heaps of jams when all the kids were younger and did enjoy them back then.
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