Preparation:
Heat a clean griddle and brush with 1/2 of the oil. Brush onion slices lightly with remaining oil on both sides, season with salt and pepper and place on griddle.
Grill for 3 to 5 minutes on each side, or until softened and lightly charred.
Transfer onions to a bowl, drizzle with vinegar and sprinkle with rosemary.
Toss to separate rings and season with more salt an pepper as needed. |