Slice the shallots finely and leave them to soak in vinegar for 10 minutes until soft. (You can use small pickled onions instead, but they don’t have to be softened).
Cut the grapes in halves, remove the seeds and mix with onions and olive oil
Sprinkle the onion and grape salad with cubed white cheese.
Other salads with fruit like this onion salad with grapes and feta