Social. 1  Minnesota Starwatch at Washington County Parks Sept. 1 Visit Washington County Parks 9 p.m. to 11 p.m. Friday, Sept. 1, at Lake Elmo Park Reserve to watch the great celestial show in the sky with Minnesota Starwatch hosted by Mike Lynch of WCCO. Read on...
Sear the tri-tip for about four minutes. Turn it over, and place it in a baking dish with the seared side facing up. Cook for 30 minutes for rare or medium rare meat or 45 minutes for well-done. Use a meat thermometer to check that the internal temperature is between 135 and 150 degrees, then emove the meat from the oven and place it on a cutting board.
Once the tri-tip roast has reached your desired doneness, remove it from the grill and let it rest on a platter for 10 minutes. Slice the roast thin and against the grain for maximum tenderness. There you have it, fool-proof tri-tip roast.he real answer is it depends, but a total time of 25 - 30 minutes for a smaller tri-tip is usually a good starting guess. Each tri-tip roast and grill is different though, so you really need to use a meat thermometer to make sure the roast is cooked to perfection.