While the company does not divulge their exact secret recipe, it's possible to make a dish very similar to Texas Roadhouse ribs at home by knowing the cooking process and a blend of spices that replicates the restaurant dish. copycatrecipeguide.com
Score the frozen ribs several times on the back of the rack.
Allow to thaw overnight.
Preheat oven to 275 degrees Fahrenheit. Place a wire rack in a large shallow pan large enough to hold the rack of ribs.
Rub 1/8 cup of the Texas Roadhouse rib seasoning over each side of the ribs. Use additional seasoning if needed to cover each side of the ribs.
Combine the water and liquid smoke in the large pan. Mix well.
Place the ribs in the pan on top of the wire rack. Do not allow the ribs to touch the water-liquid smoke mixture. Cover the pan tightly with aluminum foil.
Bake for about five hours. Cook until the ribs nearly fall off the bone.
While the ribs are cooking, saute the onion in vegetable oil in a saucepan. When the onion is soft, add the remaining ingredients and bring to a boil. Reduce heat to a simmer and simmer for an hour over low heat, until thickened.
Preheat a charcoal or gas grill.
Grill covered for about four minutes on each side. Brush with BBQ sauce, then flip to allow the sauce to caramelize. Repeat with the other side. Serve.