This West African soup is about as different from a traditional European chicken-in-a-pot soup as you can get, flavored with ginger, garlic and chiles (sounds Chinese, yes?), and incorporating vegetables like sweet potatoes and kale. Then of course there are the peanuts. When it comes to the peanut butter, “natural” peanut butter, made from peanuts and salt and nothing else, works best. Chunky or creamy? It doesn’t matter much. Finally, it’s nice to time the cooking so that the sweet potatoes do not quite fall apart.
02Put oil in a deep skillet or medium saucepan over medium heat; a minute later, add onion, ginger and garlic and cook, stirring occasionally, until onion is soft, 3 to 5 minutes. Add chicken and continue cooking for another 3 or 4 minutes, until just coloring. Add 1/2 cup peanuts and the cayenne and sprinkle with salt and pepper.
03Stir in the stock and the sweet potatoes, bring to a boil, and turn heat down to medium-low so the soup bubbles gently. Stir in tomatoes and collards, then cook, stirring occasionally, until chicken is cooked through, about 10 minutes.
04Stir in 1/4 cup peanut butter. Taste, adjust seasoning (you may want to add more peanut butter at this point) and serve, garnished with remaining peanuts.