Wash the chives, shake dry and cut into fine rolls. Knead the ground pork, chives and a little pepper. Form about 20 small balls with moistened hands. Peel sweet potatoes and cut into slices. Peel and finely dice onion and garlic
Heat the oil in a casserole, fry the meatballs in it while turning. Take out, fry sweet potatoes briefly in hot frying fat, finally add onions and garlic and fry briefly. Add lentils and 1 litre of water, bring to the boil, cover and simmer for approx. 25 minutes
Clean, wash and cut the spring onions into pieces of about 3 cm. About 5 minutes before the end of the cooking time, add the spring onions and meatballs to the stew and let it simmer. Stir in stock and ketchup and season with Worcestershire sauce, cayenne pepper and salt. Bring to the boil again briefly