Wash the potatoes, beat in aluminium foil and bake in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 1 1/4 hours. Peel onion and chop roughly. Peel and crush garlic.
Halve the chilli pepper lengthwise, remove seeds and cut into strips. Heat the oil in a large pot. Fry the minced meat in it until crumbly. Add onion and garlic and fry briefly. Add tomato paste and chilli, stir-fry until brown.
Deglaze with 350 ml water and tomatoes. Bring to the boil, season with salt and pepper, simmer on low heat for 15-20 minutes. Put corn and beans on a sieve, rinse and drain. 5 minutes before the end of the cooking time, add the beans and corn to the mince and cook to the end.
Season the chili with salt, pepper and sugar. Cut the cooked potatoes with a knife and press them apart. Remove aluminium foil from the top of the potatoes. Peel off some skin.
Arrange the potatoes on a plate, fill with chilli con carne, pour the rest of the chilli into a bowl. Garnish potatoes with parsley.