Peel and finely chop the onion. Peel, wash and roughly grate the potatoes. Squeeze the grated potatoes well. Mix onion and potatoes. Stir in flour. Add eggs and mix well, season with salt and pepper.
Cut the mango off the stone. Peel the flesh and dice finely. Peel red onion and cut into fine rings. Caramelize mango and onion in a pot with sugar, deglaze with vinegar and 1 tbsp. water, simmer for about 5 minutes.
Season with salt and pepper. Wash the coriander, shake dry, pluck leaves from the stems and, except for a little to garnish, chop finely and mix with the chutney.
Heat the oil in portions in a small coated pan. Fry 16 potato pancakes one after the other from the mixture and keep warm. Serve the potato pancakes with the chutney, sprinkle with coriander.