Here is a recipe that justifies the existence of that food processor grating dish. A box grater will also do

peel and coarsely shred potatoes. About 3lbs

Rinse potatoes in a colander under cold water until water runs clear. Squeeze firmly to remove excess liquid. Transfer to a large bowl. Add salt and pepper; toss to coat

Heat 6 tbsp oil in large nonstick skillet over medium high heat. Add half of potatoes; press gently into an even layer. Sprinkle with scallions whites. Top with remaining potatoes; press gently again. Cook until golden brown and sides, 10-15 mins

Slide hash browns onto a plate. Carefully place skillet upside down over hash browns and flip to invert into skillet, browned side up. Drizzle remaining 2 tbsp oil around sides of skillet. Cook hash browns until bottom is golden brown, 10-15 mins longer. Slide onto a plate and season with sea salt. Top with scallion greens and cut into wedges.

Hash browns can be made 1 hour ahead.keep in oven at 200degress oven