Wash the tomatoes, drain and cut in half. Clean, wash and slice the radishes. Wash parsley, shake dry and pluck the leaves. Peel and finely dice the shallots.
Mix vinegar, half of the shallots, some salt, pepper and sugar. Embezzle oil. Mix the vinaigrette, tomatoes, radishes and parsley, except for a little garnish.
Clean the zucchini, wash and pat dry. Roughly grate the zucchini, place on a tea towel and squeeze well. Peel and wash the potatoes and also grate them coarsely. Mix zucchini, potatoes, remaining shallots, eggs, flour, some salt and pepper in a bowl.
Heat approx. 15 g clarified butter in a large, coated pan. With a tablespoon, place 4 small heaps in the pan, flatten and fry until golden brown while turning. Keep the finished buffers warm and fry 12 more zucchini buffers from the remaining buffer mixture.
Arrange zucchini buffer and tomato salad on 4 plates.