Collect your buds or seedpods and store in the fridge in a covered container. I normally use a small spice jar. When your container is full, rinse the 'capers' and pack them back into the container with a bay leaf and a couple of sprigs of time. Mix a little sugar and salt into some white wine vinegar and boil to dissolve. Pour this over the capers and let cool. Cover the jar and refrigerate for 3 days before using. They'll keep for 6 months in the refrigerator if covered in the vinegar.