Bring the vinegar, water, sugar, salt and cucumber spice to the boil. Peel and core the zucchini, peel the cucumber, core the paprika and peel the onion. Dice the vegetables and mix everything in a large bowl. Top up with the hot liquid.
Fill into suitable glasses (10 large, smaller ones correspondingly more) and briefly boil down for 15 minutes at 75 ° C.