3 prosciutto egg sandwiches sauce Recipes

butter or margarine, at room temperature, dijon mustard, dry white wine, minced shallots, whipping cream, salt and pepper, eggs, thick slices (about 2 oz. each) challah, appenzell or gruyere cheese, thinly sliced, sliced prosciutto, salad mix (about 2 qts.), rinsed and crisped

unsalted butter, onion, finely chopped, all-purpose flour, milk, swiss cheese, shredded (about 1/2 cup), salt , to taste, fresh ground black pepper , to taste, unsalted butter, onions, finely chopped, baby spinach, distilled white vinegar, english muffin, split, eggs, prosciutto , about 2 oz, tomatoes