Sweet potatoes, except 1⁄2, peel, wash and roughly dice. Peel and coarsely dice onion, garlic and ginger. Clean the chilli, cut lengthwise, remove seeds, wash and chop. Rinse meat and dab dry.
Heat 1-2 tablespoons of oil in a large pot. Fry the sweet potatoes, onion, garlic, ginger and chilli in it for 3-4 minutes. Add 1 l water. Add chicken breasts, bring to the boil, cover and simmer for about 40 minutes.
In the meantime, wash the remaining half of the potatoes thoroughly and slice or cut them into thin slices. Heat 2 tablespoons of oil in a frying pan. Fry the potato slices for 1-2 minutes on each side until crispy. Salt and drain on kitchen paper.
Lift out the chicken breast and let it cool down briefly. Remove the skin, remove the meat from the bone and cut into cubes. Roast the sesame seeds in a pan and take them out. Heat 1 tablespoon of oil in the pan.
Fry the meat in it until golden brown all around. Season with salt and pepper. Remove and roll in sesame seeds.
Add cream and orange juice to the soup and puree finely with a hand blender. Season to taste with salt and pepper. Serve with sweet potato chips and sesame chicken. Wash the coriander, shake dry, pluck off the leaves and sprinkle over the soup.