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.
Place the roast on a rack in a roasting pan, fat side up, and put the roast in the 450 degree preheated oven. Roast for 10 minutes, then RE-SET THE OVEN TEMPERATURE TO 250 DEGREES.Continue cooking for about 50-80 minutes or until the meat registers 150 degrees on a meat thermometer.lace the roast on a rack in a roasting pan, fat side up, and put the roast in the 450 degree preheated oven. Roast for 10 minutes, then RE-SET THE OVEN TEMPERATURE TO 250 DEGREES.