Ingredients

1onion,cut into paper-thin slices

2½tspgrainy dijon mustard

2tspred wine vinegar,or white wine vinegar

¼tspsalt

¼tspfresh ground black pepper

½cupolive oil

1lbsmoked ham,sliced, cut into matchstick strips

½lbgruyère cheese,sliced, cut into matchstick strips

¾cupfresh parsley,chopped

Preparation

Put the onion in a small bowl of cold water and let stand for 10 minutes. Drain the onion, rinse, and then pat dry with paper towels.

Meanwhile, in a large glass or stainless-steel bowl, whisk together the mustard, vinegar, salt, and pepper. Add the oil slowly, whisking. Add the ham, cheese, onion, and parsley to the vinaigrette and toss.

Serve and enjoy.