Stir the spice rub ingredients together in a small bowl and rub all over the pork. Heat oil in ovenproof 12-inch heavy skillet over medium high heat. Brown pork, turning occasionally, about 4-5 minutes total. Remove from heat, but leave pork in skillet.
Stir together brown sugar, garlic and Tabasco in a small bowl. Pat the mixture on top of the pork. Place skillet in the oven at 350. Roast until thermometer inserted diagonally into the center of each tenderloin registers 140 degrees, about 20 minutes. Let pork stand in skillet, loosely covered with foil for 10 minutes.