Heat the lard in a saucepan, add the finely chopped onion, and sauté over medium heat for 5-6 minutes, stirring, until translucent.
Remove from the heat, stir in the paprika, and immediately add a little water, so the paprika doesn't burn.
Return to the heat, add the cubed pork, season with salt and pepper, and braise covered over low heat for 50-60 minutes, until tender, topping up with a little water occasionally.
Meanwhile, add the eggs and a pinch of salt to the flour, and enough water to make a firm, elastic dough; knead well, then roll out thin (about 3-4 mm), and cut into thick (about 1 cm) strips.
Cook the noodles in plenty of boiling salted water for 5-7 minutes, until they float and are tender, then drain.
Cook the rice separately in salted water (or broth) until tender, then pack it into a round ring mold and turn it out in the middle of a plate to form a rice ring.
Add the cooked noodles to the tender stew, sprinkle generously with marjoram, and fold together well.
Add the sour cream, and let it cook together for a few minutes until creamy.
Pile the stew with noodles in the middle of the rice ring, and serve hot.
Based on: Malatinszky Fanny szakácskönyve (a classic Hungarian cookbook), modernised. Calories and protein are estimated.