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.
Directions See How It's Made. 1  Preheat oven to 400Â°F Use a mandoline or a vegetable peeler to make long strips of parsnip in very thin slices (about 1-millimetre thick). 2  Brush the strips lightly with vegetable oil and place them in a single layer on a parchment-lined baking sheet. 3  Cool on baking sheet and season with salt to taste.