Quick Monte Cristo Sandwich - Easy Sweet & Savory Breakfast Recipe

Name: Quick Monte Cristo Sandwich - Easy Sweet & Savory Breakfast Recipe
Cuisine: European
Ingredients: 8 slices white bread; 8 slices Swiss cheese; 8 slices deli ham; 4 large eggs; ¼ cup milk; ½ teaspoon vanilla extract; ¼ teaspoon cinnamon; 2 tablespoons butter; Powdered sugar for dusting; Maple syrup or raspberry jam for serving; Large mixing bowl; Large non-stick skillet or griddle