Spread each slice of baguette with butter. On an un-buttered
side, spread over half the chutney, top with a piece of prosciutto
and 2 bocconcini halves. Top with a second slice of bread,
buttered-side up, then top with a sage leaf and press down
slightly. Repeat to make a second sandwich.
Add a drizzle of oil and a knob of butter to a small pan.
Fry the sandwiches over a low heat, turning, until golden
and crisp, and the cheese is just melting. Eat immediately.