Dissolve the salt and sugar in hot water; stir in pickling spice.
Place the bear meat in a casserole dish and sprinkle with chopped garlic.
Cover meat with the salt water solution.
Place a lid on the casserole dish and allow to stand for 3 weeks in a cool dry place, turning the meat once a day.
To prepare for cooking:
Rinse meat and soak in clean water overnight or at least 6 hours.
The next day, pour off water. Place in a deep heavy pan or Dutch oven and add fresh water just to cover.
Simmer 4 hours.
For the sauce:
Melt butter in a saucepan; stir in flour, powdered mustard and pepper, to make a roux.
Add a few tablespoons of hot bear stock and whisk until smooth paste.
Whisk in the remaining hot stock. Stir and simmer for about 5 minutes to thicken the sauce.
Add half and half cream and dried dill.
Keep the sauce warm, over low heat, while the bear meat is being sliced.
Serve hot.