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.
To cook your vegetables: Put the potatoes and carrots into a large pan â you may need to use two â of salted, boiling water on a high heat and bring back to the boil. Allow to boil for 5 minutes, then add the parsnips and cook for another 4 minutes. Drain in a colander and allow to steam dry. Take out the carrots and parsnips and put to one side.