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.
Instructions. 1  Preheat your oven to 375. 2  Scrub your parsnips clean and lightly peel them (you don't have to peel them if yours are really clean). 3  Toss with a drizzle of olive oil and a few good pinches of salt.  Bake until golden brown, flipping 1  halfway. Remove from oven and serve immediately, they're best  hot.