Wash the potatoes and cook in boiling water for about 20 minutes. Then rinse with cold water, peel and slice. Add hot broth and leave to stand. In the meantime, clean and wash the leek and cut into fine rings.
Rinse the corn well and let it drip off. Clean, wash and halve the tomatoes. Mix the prepared ingredients. For the sauce, mix yoghurt and pineapple juice. Season with salt, pepper, curry and sugar.
Cut the cold cuts into quarters, roll them up a bit and arrange them in portions with the salad and sauce.