Lay out three slices of sandwich bread. Split grated cheese between two slices of bread. Top cheese with sliced ham.
Lightly spread mayo on each side of the third piece of bread. Place the mayo piece of bread on top of one of the two sides. Then flip the other ham/cheese side on top so the mayo piece of bread is in between the two sides, creating a two layer sandwich. The cheese should be on the outside of the sandwich.
Slice the crust off the sandwich. Use a cutting board to press the sandwich to compact the layers.
In a small bowl, whisk together the egg, milk, Member's Mark™ Spanish Style Paprika, and a pinch of Member's Mark™ Pink Himalayan Salt Grinder and Member's Mark™ Black Peppercorn Grinder.
In a small skillet over medium heat, melt the butter. Meanwhile, dredge the sandwich in the egg mixture, coating all sides. Immediately move sandwich to the skillet. Cook for 3-4 minutes per side until sandwich is golden brown. Upend the sandwich to cook on the ends for about 15 seconds per side.
Sandwich is done cooking when it is a dark golden brown and cheese is completely melted. Dust lightly with powdered sugar. Slice in half, and serve!