I took a ~3lbs corned beef brisket flat and soaked in cold water for about 90 minutes changing halfway though. Then rinsed, dried and packed in the spice rub.
Spice rub:
2 tsp black peppercorns (Tellicherry)
2 tsp coriander seeds
1 tsp fennel seeds
1 tsp caraway seeds
1 tbs celery seeds
2 tsp mustard powder
1 tbs smoked paprika
1 tsp allspice
2 tbs turbinado sugar (or brown sugar)
1 tsp garlic powder
Grind the seeds less celery seeds in a spice grider or mortar. Add dry ingredients and rub all sides of the brisket.

Fire up your kettle or (preferably) your smoker and have at it. This was a thin cut of meat and a kettle doesn't exactly have fine temperature control. I'm not gonna lie here, the kettle was too hot.

I let it rest for two hours and niqqer rigged a steamer using a covered roasting pan for another couple hours. The meat was very flavorful but too dry.

I'm trying to see if a crockpot on low can break it down. The spice rub is money and the concept is sound. I'm sure some of you can make it work a lot better.