Start by cleaning and cutting the fruits. Cut off the peel of the cantaloup and cut into small pieces.
Cut your plum and discard the core.
Peel your orange and cut out the seeds, cut the flesh into small pieces.
Peel your cucumber and slice thine.
For the Vinaigrette grab a jar with a lid. Add the Vinegar, salt and pepper first, close the jar and shake. Salt doesn’t get mixed in oil, that’s why we need to dissolve it first in the vinegar. Then add the oil and mustard, close the lid and shake well again until all ingredients are incorporated.
Pour the dressing over the salad and enjoy. If there is some dressing left, just store it in a closed jar in the fridge and use it for something else.