Boil the rice the day before together with the grained vegetable stock and the curry powder, preferably in a rice cooker in 375 g water.
Cut the ham and Gouda cheese into small cubes, coarsely chop the parsley.
Mix the cooked rice with the remaining ingredients thoroughly and season with salt and pepper. Shape the rice mixture into approximately 1 cm thick cookies with wet hands.
Heat a non-stick pan on medium heat and fry the rice cookies on both sides in vegetable oil until crispy brown.