01 -
1 ounce (2 tablespoons) unsalted butter.
02 -
4 large onions, cut into thin slices.
03 -
1 teaspoon black pepper, ground.
04 -
1/2 teaspoon powder from garlic.
05 -
32 ounces of beef stock.
06 -
3 tablespoons sauce from Worcestershire.
07 -
Salt according to preference.
08 -
4 slices hearty country bread, lightly browned.
09 -
4 slices cheese (gruyere or provolone).