Combine all dry rub ingredients in a small bowl, set aside
Lightly coat beef short ribs with olive oil
Generously season both sides of beef short ribs with dry rub mixture
Place ribs in covered dish or ziploc bag, and refrigerate for 2-4 hours.
Preheat oven to 250F
Remove ribs from refrigerator and place on foil lined baking sheet. Cover ribs completely with another piece of foil and seal the edges so that no steam can escape
Bake for 3 1/2-4 hours. Carefully open the foil. Using a meat thermometer, take the temperature in between the bones. Ideal temperature should be about 200°F. (see above)
Remove from oven and drain excess fat.
If desired, lightly brush ribs with favorite BBQ sauce or homemade BBQ sauce recipe (above). Place back into the oven and broil on high for about 5 minutes.
Transfer the short ribs to a platter, leaving the cooking liquid behind, and slather with the reserved BBQ sauce.