Melt butter in a large pot over medium heat. When it foams, add onion, season with salt, and cook until tender, about 3 minutes. Add apple, carrot, and garlic, stir to coat in butter, and season again with salt and freshly ground black pepper. Sauté until apple is tender and onion is translucent, about 5 minutes.
Sprinkle flour, curry powder, garam masala, cumin, and cloves over vegetables and stir until spices are fragrant and flour has cooked slightly, about 2 minutes.
Slowly add stock or broth, stirring until flour has dissolved. Bring to a simmer and cook until vegetables are tender, about 10 minutes.
Add turkey, rice, coconut milk, and lemon juice and return soup to a simmer for about 10 minutes. Stir in lemon zest, if using, and season with additional salt and freshly ground black pepper as desired. Ladle soup into bowls, garnish with cilantro, and serve.
Beverage pairing: Hecht & Bannier Vin de Pays des Côtes de Thau Syrah Rosé, France. Syrah and Indian spices typically go well together, but a deep, red wine would probably overwhelm the soup. The solution is a Syrah rosé, which still possesses some of the savory/sweet fruit of the grape, while delivering it in a rounder, mellower package.
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