I have adored French onion soup my entire life — the gooey cheese, the spongy stock-soaked bread, the hearty beefy onions. If it’s on the menu, I’m ordering it. I’ve sampled hundreds of versions, from ...
If cooking for vegetarians, the beef stock in this French onion soup could be substituted for mushroom stock. If you don't have Madeira, you can use dry sherry, white vermouth or just leave it out.