I make jam, we rarely buy any except for the 'exotic' ones like pineapple, and I've never used sugar with added pectin.
I use a sugar thermometer to check the temperature's about right and then spoon some of the jam, just about a teaspoonfull, onto a cold saucer and leave it for a few minutes. If it sets then the jam's ready and will keep.
You need a really big pan because when the mixture boils it takes up a lot more space.
I rinse out the jars and lids and put them into a warm oven, take them out when the jam's ready and stand them on a wooden chopping board, not onto a metal draining board because they could crack. Put the lids on when the jam's still hot and you'll get a good airtight seal.
There are loads of recipes online as well as in cookery books. The amount of sugar varies according to the fruit used. Blackcurrant is easy to get to set, strawberry less so and more fiddly to make because the fruit needs to stand overnight in sugar.
For marmalade you can buy tins of ready-to-use fruit called Mamade. It comes in different thickness of cut and also different citrus fruit blends so saves the hassle of preparing your own fruit, although I've found that my family don't mind too much if I shove the roughly chopped fruit into a food processor until it looks about right!
I use a sugar thermometer to check the temperature's about right and then spoon some of the jam, just about a teaspoonfull, onto a cold saucer and leave it for a few minutes. If it sets then the jam's ready and will keep.
You need a really big pan because when the mixture boils it takes up a lot more space.
I rinse out the jars and lids and put them into a warm oven, take them out when the jam's ready and stand them on a wooden chopping board, not onto a metal draining board because they could crack. Put the lids on when the jam's still hot and you'll get a good airtight seal.
There are loads of recipes online as well as in cookery books. The amount of sugar varies according to the fruit used. Blackcurrant is easy to get to set, strawberry less so and more fiddly to make because the fruit needs to stand overnight in sugar.
For marmalade you can buy tins of ready-to-use fruit called Mamade. It comes in different thickness of cut and also different citrus fruit blends so saves the hassle of preparing your own fruit, although I've found that my family don't mind too much if I shove the roughly chopped fruit into a food processor until it looks about right!