Plate the lemongrass with the back of a knife and sauté with the finely chopped garlic and diced onion in a little butter. Wash, peel and dice the carrots, sweet potatoes and potatoes, add to the onions and cook over a low heat for at least 10 minutes. Salt, pepper and season with a little nutmeg. Add the broth and cook through.
Salt and pepper the diced chicken and marinate with soy sauce. Dice the peppers into 2 cm pieces and skewer with the marinated chicken on a kebab skewer. Fry on all sides in a little oil in a pan. Keep warm in the oven at 70 ° C.
Thoroughly puree the soup. Add the coconut milk and the finely chopped chilli pepper. If you like it spicier, you can add more chilli. Refine with soy sauce.
I like to serve the soup in soup bowls. Put the chicken skewer on top, which I cover with honey just before serving and sprinkle with sesame seeds.