The National Paralegal College reports that the test was first introduced during a 1970 U.S. Supreme Court case, Lemon v. Kurtzman.
Preheat oven to 450Â°F. Toss parsnips with oil and salt to taste in a shallow (1-inch-deep) baking pan and roast in middle of oven, turning over halfway through cooking, until golden and tender, 30 to 35 minutes total.oss parsnips with oil and salt to taste in a shallow (1-inch-deep) baking pan and roast in middle of oven, turning over halfway through cooking, until golden and tender, 30 to 35 minutes total.
3. Oven-roasting the tri-tip roast Place roast in the oven and roast, uncovered, for 30 to 35 minutes or until the thermometer registers 135 degrees F. Remove from the oven and cover with foil. Let the meat stand for 15 minutes, which will bring the temperature up to 145 degrees F (medium rare) after standing.. Oven-roasting the tri-tip roast. 1  Place roast in the oven and roast, uncovered, for 30 to 35 minutes or until the thermometer registers 135 degrees F. Remove from the oven and cover with foil.