If you don’t want to freeze them but avoid the boredom and finger stabbing of pricking just put a cut in them with a sharp knife, it’s a lot quicker.
I put 2 big chopping boards on a worktop with a sloe-sized gap between them. Tip a load of sloes into the gap then run a sharp knife along your little row of sloes. Roll them into a waiting bag and repeat. Far quicker than trying to do anything individually!
Freezing doesn’t make them split, but the defrosting process causes the cells to rupture so they release more flavour.
Another advocate of Aldi London Gin, it’s cracking stuff for the money. 1lb sloes, half-lb of sugar and 1 litre gin is my standard recipe.
If it’s not sweet enough, make a syrup of a bit of sloe gin and some caster sugar in a saucepan and dribble it in until you’re happy with the taste.
I’ve got some on the go with cinnamon sticks and cloves for extra festive flavour.
Chinchin!
G