Smoked Ham Salad on Gruyere Potato Coins

Ingredients

 * 2 	 long thin   potatoes, cut into 1/8 inch thick slices
 * 1 	tablespoon olive oil
 * salt & freshly ground black pepper
 * 1 	cup shredded gruyere cheese (about 4 ounces)
 * 1/2 	lb lean smoked ham, finely chopped
 * 3 	tablespoons mayonnaise
 * 1 	scallion, finely chopped
 * 1 	tablespoon finely chopped cornichons
 * 1 	tablespoon finely chopped capers
 * 1 	teaspoon finely chopped tarragon
 * 2 	teaspoons Dijon mustard

Directions
Preheat the oven to 350° and line a baking sheet with parchment paper or foil. Using a 2-inch round biscuit cutter, cut the potato slices into rounds. In a bowl, toss the potatoes with the olive oil and arrange them in a single layer on the baking sheet. Season lightly with salt and pepper, then sprinkle with the cheese. Bake the potato rounds for about 45 minutes, or until deep golden; let cool. Transfer the potato coins to paper towels. In a small bowl, combine the ham with the mayonnaise, scallion, Cornichons, capers, tarragon and mustard. Season with salt and pepper. Spoon the ham salad onto the potato coins and serve.