Peel and slice the ginger and garlic. Clean, wash and cut the chillies into pieces. Clean lemongrass, cut into pieces and pound a little. Bring prepared ingredients and broth to the boil in a pot.
Cover and let it simmer for about 15 minutes. In the meantime, wash, drain and cut the sugar snap peas into pieces. Peel, wash and cut carrots into very thin strips. Clean, wash and cut the peppers into very thin strips.
Remove the lemon grass. Add sugar snap peas to the stock and cook covered for 3-5 minutes. Prepare pasta in boiling salted water according to package instructions. Cut the tofu into cubes. Heat oil in a pan.
Fry the tofu for 2-3 minutes while turning it, season with salt and pepper. Clean and wash spring onions and cut into rings. Add the carrots, spring onions, peppers and tofu to the stock and cook for 1-2 minutes.
Drain the noodles, rinse briefly with cold water and add to the soup. Season soup with salt and pepper, arrange and garnish with coriander.