Rinse the potatoes well with cold water, cut into large pieces and make sure they are big enough to grill.
Bring the potatoes to the boil in a large pan of cold, salted water and cook for 10 to 15 minutes. The potatoes should not be
too soft, otherwise they will fall apart. Drain the potatoes, sprinkle with vegetable oil and add some salt. Put the potatoes
on the grill and turn them every 3 to 5 minutes so that there are grill marks on all sides.
Place the grilled potatoes in a large bowl and make the vinaigrette. Mix olive oil with mustard and the juice of 1 grilled lemon. Add the garlic,
parsley, oregano and shallot. Pour over the potatoes and mix well. Cut the other grilled lemon into wedges and serve the salad at
.