Onion Soup With Sage Brown Butter Croutons And Grated Lemon Peel Recipes

Steps:

• Melt 6 tablespoons butter in heavy extra-large pot over medium-high heat. Add onions; sprinkle with salt and pepper and sauté until onions begin to soften, 15 to 18 minutes. Reduce heat to medium and sauté until onions are very tender and deep golden brown, stirring often and adjusting heat as needed, 25 to 30 minutes longer. Transfer 1 1/2 cups caramelized onions to small bowl and reserve for garnish.
• Add 8 cups broth to remaining onions in pot and bring to boil. Reduce heat and simmer 25 minutes to blend flavors. Cool slightly. Working in batches, puree soup in blender until smooth. Return to same pot and add more broth by 1/4 cupfuls to thin soup to desired consistency. Season soup to taste with salt and pepper. DO AHEAD: Can be made 1 day ahead. Cover and chill reserved caramelized onions. Cool soup slightly. Chill soup uncovered until cold, then cover and keep chilled. Rewarm caramelized onions and soup separately before continuing.
• Melt 2 tablespoons butter in medium nonstick skillet over medium heat. Add torn bread pieces and sauté until bread pieces are crisp and golden, 5 to 6 minutes. Remove from heat and reserve.
• Cook remaining 4 tablespoons butter in small saucepan over medium heat until golden brown, stirring occasionally, 3 to 4 minutes. Add sage leaves and cook until slightly crisp, 30 seconds to 1 minute. Transfer leaves to small plate; reserve brown butter in saucepan.
• Stir 1 1/2 tablespoons vinegar into reserved caramelized onions, adding more vinegar by 1/2 teaspoonfuls, if desired.
• Divide warm soup among 8 bowls. Spoon vinegar-seasoned caramelized onions atop soup in each bowl. Sprinkle each serving with croutons and fried sage leaves. Drizzle sage brown butter over each; sprinkle lightly with grated lemon peel and freshly ground black pepper and serve.

Steps:

• Heat the oil in a 6-quart Dutch oven over high heat. Add the oxtail (or beef shoulder) in a single layer (work in batches, if necessary to avoid crowding the pan), and sear until the undersides are brown (do not turn). Season generously with salt and transfer to a plate.
• Coarsely chop two of the onions; add to the pot, along with the celery, carrots, bay leaves and thyme. Lower heat to medium and cook, stirring occasionally, until vegetables are soft and beginning to caramelize, about 10 minutes. Return the beef to the pot. Pour in 8 cups water. Simmer mixture gently until the meat is very tender, 2 1/2 to 3 hours.
• Transfer beef to a bowl to cool for another use. Strain liquid into a bowl over a fine-mesh sieve; press gently on the solids with the back of a spatula to extract as much flavor as possible. Discard the solids; you should have about 10 cups broth (add water if necessary to equal 10 cups).
• Halve the remaining 6 onions through the root end, then peel and thinly slice them lengthwise. Melt the butter in the bottom of the Dutch oven over medium heat. Add the onions and cook, tossing occasionally, until deep golden-brown and caramelized, 45 minutes to 1 hour. Season with 1 teaspoon salt and black pepper. Pour in the port and cook, scraping up any browned bits from the bottom of the pan, for 3 minutes. Pour in the broth and simmer mixture over low heat for 30 minutes. Season with salt and lemon juice, if desired. (For a smaller group, you could refrigerate some of the soup and reheat it later.)
• While the broth simmers, heat the oven to 350 degrees. Arrange the bread slices on a baking sheet and toast until golden, about 12 minutes. Rub the garlic halves over the surface of the bread.
• Heat the broiler and arrange a rack 4 to 6 inches from the flame. Using a cheese slicer, thinly slice 3 ounces of Gruyère. Coarsely grate the remaining cheese. Float the broiled bread over the surface of the hot soup. Layer the cheese slices over the bread; scatter the grated cheese over it. Transfer the Dutch oven to the oven and broil until cheese is golden and bubbling, 3 to 5 minutes (watch to see that it does not burn).
• To serve, use kitchen shears or scissors to cut the bread and cheese into portions. Ladle soup, bread and cheese into individual bowls.