Pear, Caramelized Onion, and Prosciutto Grilled Cheese

1. Spread one side of each piece of bread with mayonnaise. This will give your sandwich the perfect crispy exterior.
2. Flip the bread over, so the mayo is facing down. To one slice, add shredded cheddar cheese, a drizzle of balsamic glaze, sliced pears, caramelized onions, and crispy prosciutto.
3. Sandwich the bread with the additional piece of sourdough.
4. Cook on a pan until one side is golden brown. Flip and cook the other side until golden as well.
5. Slice and serve.