A lot of these recipes seem to involve a lot of work, which I'm not keen on. What I do with berries is all kinds is

buy a bottle of gin
put berries in big jars
add a good wodge of sugar
fill with gin
put top on
leave in cupboard
open, pour off liquid drink at christmas

simple, no sterilising, boiling,squeezing steaming filtering or anything. Can be done while waiting for a kettle to boil.