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.
Slide the sheet into the oven and bake the chips for 20 minutes, turning the chips over halfway. Bake the chips in batches if you have too many for one sheet. The parsnip chips are ready when they turn golden brown in color. Transfer the baked chips to a paper towel to allow them to cool down.