Wash the potatoes and cook in plenty of boiling water for about 20 minutes. In the meantime, wash and clean the sugar snap peas and cook in boiling salted water for about 3 minutes. Remove and rinse with cold water.
Drain the corn in a sieve. Clean, wash and cut the peppers into pieces. Rinse potatoes under cold water, drain and peel. Cut potatoes into slices.
Heat clarified butter in a large frying pan. Fry the potatoes for about 10 minutes while turning. Add bell peppers, sugar snap peas and corn and fry for another 3-4 minutes. Wash parsley and dab dry.
Pluck off the leaves and cut them finely. Season the fried potatoes with salt and pepper. Fold in parsley.