INSTRUCTIONS
1. Preheat oven to 350°F (177°FC).
2. In a large cast-iron skillet, melt butter over medium heat. Saute onions until light brown, stirring often; add paprika; cook another minute. Remove onions from pan; set aside.
3. Season steaks with salt and pepper. Add vegetable oil to same skillet and add steaks; brown on both sides.
4. Turn off heat, add beef stock to skillet, arrange onions on top and cover. Bake until tender, about 2-2½ hours.
5. To serve, place steaks on a pre-warmed serving platter with onions arranged on top. Cover loosely to keep warm. Return skillet with remaining liquid to high heat and bring to a boil. Stir in sour cream; immediately remove from heat and pour over steaks. Serve immediately.