1. In a saucepan over medium heat, melt the butter and oil.
2. Add the onion and garlic and fry until golden brown.
3. Add the meat and fry until golden brown.
4. Add coarse grain mustard, cumin, paprika, black pepper, salt and sugar and mix.
5. Add water and bring to a boil.
6. Reduce the heat and cover the pot.
7. Cook on low heat for 1½ hours.
8. Add marjoram, thyme and other spices to taste.
9. Cook for another 15 minutes.
10. Serve with cooked rice or dumplings.