Homemade pickled cucumbers. I use them for an accompaniment to Pølser (Danish hotdogs) and roast pork. Also nice in cold roast pork sandwiches. Keeps well in the fridge for a week and has a variety of uses.
Called continental cucumbers in Australia, English cucumbers in the USA, the cucumber to use is the long, thin, seedless variety that is sold shrink wrapped in the shops.