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Printed at the current scale: 24 servings · Metric · front and back, more cards if it runs long

French Onion Soup

24 servings · 4 × 6 in
Soup
4080 g yellow onions, thinly sliced
135 ml unsalted butter
15 to 30 ml fine sea salt
175 ml dry sherry, vermouth or white wine
3 leaves bay leaf or a few sprigs of thyme
5.68 l beef stock, or chicken or mushroom stock, the more robust the better
freshly ground black pepper, to taste
Toasts and Gratin
24 slices slices of country bread or baguette, cut 2 to 2.5 cm thick, one per bowl
3 cloves garlic, peeled
1.42 l Gruyère, Comté, or Gruyère mixed with Parmesan, grated, about a quarter cup per bowl
forklet.co/r/1j4qXLIN?scale=3 · v1
  1. Soup Melt 135 ml unsalted butter in the pot over medium heat. Add 4080 g yellow onions, toss to coat them in butter and cover. Turn the heat down to medium-low and leave them to steep, untouched, for 15 min.
  2. Uncover, raise the heat slightly and stir in 15 to 30 ml fine sea salt. Cook, stirring every five minutes or so, for 40 to 90 min longer, until the onions are an even, deep golden brown. Turn the heat down if they colour too fast.
  3. Add 175 ml dry sherry, vermouth or white wine, if using, and scrape up any onion stuck to the pot. Cook until the liquid disappears. 1 min to 3 min
  4. Add 5.68 l beef stock, or chicken or mushroom stock, 3 leaves bay leaf or a few sprigs of thyme and plenty of freshly ground black pepper. Bring to a simmer, partly cover and simmer for 15 min to 20 min. Taste for salt and fish out the bay leaf or thyme.
  5. Toasts and Gratin While the soup simmers, heat the broiler, or heat the oven as hot as it will go if you have no broiler. 260 °C
  6. Unless 24 slices slices of country bread or baguette is already stale, toast the slices lightly until firm. Rub each one lightly with the cut 3 cloves garlic.
  7. Set the bowls on a foil-lined baking sheet and ladle in the hot soup. Fit a toast on top of each, trimming it if needed, and cover with 1.42 l Gruyère, Comté, or Gruyère mixed with Parmesan.
  8. Slide the sheet under the broiler until the cheese is melted and browned at the edges. Serve straight away; the soup stays hot for a good 10 min. 260 °C
  • Safety: Large batch: cool quickly in shallow containers or an ice bath, to below 5 °C within 6 hours, before refrigerating. (USDA FSIS)
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