cuban sandwich recipe

Ingredients: 1 loaf of Cuban bread (or a long baguette or ciabatta loaf) 1/2 cup yellow mustard 1/2 cup mayonnaise (optional) 8 slices Swiss cheese 8 slices deli ham 1/2 pound roast pork, thinly sliced 8 slices dill pickles 2 tablespoons butter, softened