Combine sugar and 2 cups of water in a saucepan over medium heat and stir until sugar dissolves. Bring to the boil and add figs. Remove from heat and stand for at least 1 hour to macerate.
Preheat grill to highest setting. Top each slice of walnut toast with a slice of Raclette, place under grill and cook for 3 minutes or until cheese melts and becomes golden. Top with fig conserve, figs and walnuts, drizzle with honey and serve immediately.
Note Good-quality fig conserve is available from Simon Johnson
or other specialty stores.