Wash and dry the grapes before coating them in olive oil and salt. Then place the grapes on a baking tray and into the oven - they will need about 20 minutes to roast.
Slice the Chaource (or other cheese) and place on the sourdough, and out half a fig on each piece of bread. Drizzle the bread with some olive oil, salt and pepper. Place in the oven for about 15 minutes, until the cheese has melted and the fig has caramelised on top.
Remove the grapes and sourdough from the oven, arrange the bread slices on a board or a serving dish with the roasted grapes. For an apéro platter, cut the slices into bite-size chunks.
Notes
Chaource is a soft cow's milk cheese from the Champagne-Ardenne region of France. The cheese is named after the village where it has been made since the Middle Ages.