Skin chicken legs, rinse and pat dry. Season with salt and pepper. Put polenta in a bowl and mix with salt, cumin, paprika and chilli powder. Put flour in a second bowl.
Whisk the egg in another bowl. Put oil for frying in a pot and heat it up. Turn chicken legs first in flour, then in egg and finally in polenta. Fry chicken legs in the oil for about 5 minutes, remove from the pot and drain on kitchen paper.
Place on a baking tray lined with baking paper. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 25 minutes. Clean, wash and pat dry the salad. Cut large lettuce leaves into strips.1 Halve the chilli, remove seeds and chop finely.
Cut 2 chillies into fine rings. Whisk orange and lemon juice with oil, chopped chilli, sugar, salt and pepper to a salad dressing. Peel onion and cut into rings. Wash the cherry tomatoes, dab dry and cut in half.
Drain the corn on a sieve. Mix yoghurt with salt, pepper and chilli powder. Mix salad with the salad dressing, arrange on plates and sprinkle with cherry tomatoes, corn and onion rings.
Remove the chicken legs from the oven and arrange on the salad. Add yoghurt in a bowl. Sprinkle with chilli rings.