
6 to 8
Easy
20 minutes
40 minutes To make the béchamel sauce, scald the milk in a saucepan along with the onion, thyme, bay leaf and peppercorns for 3–5 minutes until it starts to simmer. Remove from the heat, strain and set aside.
In a clean saucepan, combine the butter and flour, and cook for 2 minutes, then add the flavoured milk, a splash at a time, whisking continually. Once the sauce has thickened enough to coat the back of a spoon, remove it from the heat and season.
Place a griddle pan over a high heat, brush the bread with olive oil, then chargrill the bread for 1 minute on each side.
Preheat the oven grill. Layer slices of both cheeses and the ham over half of the slices of bread, place on a baking tray and grill. Once the cheese bubbles, remove the tray from the oven and spoon approximately 1 T béchamel sauce over each slice. Season and sprinkle over the thyme, then grill again until golden brown and bubbling.
Top each slice with the remaining toast and serve immediately.