butter for the pan
baguette, cut into 2-inch slices
small yellow onion, thinly sliced
thinly sliced cooked ham
(6 ounces) grated Gruyere
- Heat oven to 400° F. Place the bread in a buttered ovenproof skillet, a 9-inch square baking dish, or a casserole. Scatter the onion and ham over the bread. Pour the wine over the onion and ham and sprinkle with the pepper and Gruyère.
- Bake until the cheese has melted and begun to brown at the edges, about 20 minutes. Spoon onto individual plates.