Melt lard in a pot over high heat. Add onions; cook and stir until browned, about 15 minutes. Remove pot from heat, add paprika, and stir quickly to combine with onions and prevent burning.
Add meat to the pot and place over high heat. Cook and stir until browned on all sides, 5 to 10 minutes. Season with salt and pepper. Add tomato paste and stir to combine. Add water, garlic, and cumin. Reduce heat to low and cover the pot. Cook, stirring occasionally, until meat is very soft, at least 1 1/2 hours. Stir in marjoram and cook another 10 minutes.