Rub meat with salt and pepper, then dust with flour and pound into meat with edge of plate.
Brown meat on both sides in the hot oil.
Put meat into a pot with a tight lid that can go into the oven. The meat should lie flat in the pan. Add the onions and cook for about 10 minutes. Add a can of beef broth, cover and cook in a 325 degree oven for two hours.
After two hours, add potatoes and carrots. If liquid level is low, add a little water or some more broth and cook for another 30 minutes. Cook a little longer if you like potatoes and carrots to be really soft.
Cover potatoes with water, add a dab of butter and boil until potatoes are tender when stuck with a fork. Drain off all the water. Mash them up. Add butter, sour cream, horseradish, dash of salt and some pepper. Stir hard. Add Pimentos.