For the brisket: Preheat a convection oven to 225 degrees F. Rub the brisket with salt, pepper and paprika. Add the brisket to a deep pan and add the melted butter and oil so the meat is just submerged.
Cover the pan tightly with foil and cook for 8 hours.
Set aside the brisket to cool to room temperature in the fat. Store the brisket in the refrigerator.
For the sauce: While the brisket cooks, add the vinegar, molasses, sugar, bourbon, chile sauce, Worcestershire sauce, horseradish, salt, garlic, ginger and cinnamon to a 4-quart saucepan set over medium heat. Stir continuously until the liquid reduces by half and is the consistency of syrup, about 1 hour.
When ready to serve, slice the brisket into 8-ounce portions and reheat in the reserved fat.
Serve the brisket over smoked paprika smashed potatoes, and top with the BBQ brisket sauce and onion rings.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.
Recipe courtesy of Taylor Bowen Ricketts, Delta Bistro, Greenwood, MS