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1
Heat 2 Tbsp. oil in a large pot over medium-high. Cook carrots, half of the onion, and 3 sliced garlic cloves, stirring occasionally, until softened and lightly browned, about 5 minutes. Add chicken carcass, if using, and broth; cover and simmer 30 minutes. (If you're not using carcass, simmer 15 minutes.)
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2
Meanwhile, toast farro in another large pot over medium heat, stirring occasionally, until it starts to brown and smells nutty, about 3 minutes. Stir in 1 tsp. salt and 3 cups water. Cover and simmer until farro is tender and liquid evaporates, about 30 minutes; strain any remaining liquid, if necessary. Set aside 2 cups farro for
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3
or reserve for another use.
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4
Strain chicken broth mixture through a fine-mesh sieve into a large bowl; discard carcass and vegetables. Set aside 2 cups broth for
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5
or reserve for another use.
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6
Wipe out pot, then heat remaining 1 Tbsp. oil over low. Cook remaining onion and 9 sliced garlic cloves, stirring occasionally, until tender and light golden, 8-10 minutes. Add remaining broth left in bowl, increase heat to medium-high, and bring to a simmer. Add reserved chicken meat, beans, kale, lemon juice, pepper, and remaining 1 1/2 tsp. salt and farro left in pot; cook until vegetables are cooked through, 3-5 minutes.
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7
Divide soup among bowls. Stir 1 Tbsp. salsa verde into each bowl, if using, and sprinkle with dill. Serve with baguette slices and lemon wedges alongside.
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8
Soup can be made 2 days ahead. Chill in a resealable container.
