Napoleon Bonaparte Muffaletta Sandwich

For the olive salad: 1/2 mug Spanish pimento olives 1/2 cup pitted black olives (Kalamatas work fine). 4 to 6 cornichons. 2 cloves garlic (see note listed below). 2 tsps dried out Italian oregano. 1/2 mug extra-virgin olive oil. 2 tbsps merlot vinegar. 1/4 tsp ground black pepper. For the sandwich components: one 6-ounce crusty [...]