(serves 4-6 as a side dish)
Adapted from Cook’s Illustrated Number 119
Partially cooking the grated potato and parsley root in the microwave ensures for a crispy latke without using as much fat to fry the little cakes. If making a large batch, cooked and cooled latkes can be frozen for later use. Grate potatoes and parsley root on the large hole of a box grater or use the shredding attachment on a food processor.
1 1/2 pounds potatoes, unpeeled, scrubbed and shredded
1/2 pound grated parsley root
1/2 grated onion
salt and pepper
2 large eggs, lightly beaten
2 teaspoons minced parsley
Adjust oven rack to middle position, place rimmed baking sheet on rack, and heat oven to 200 degrees. Toss potatoes, parsley root, onion and 1 teaspoon salt in a bowl. Place half of the grated mixture in center of a clean dish towel. Gather ends together and twist tightly to drain as much liquid as possible, reserving the liquid in a liquid measuring cup. Transfer squeeze drained mixture to second bowl and repeat process with remaining grated mixture. Set starchy potato liquid aside and let stand so starch settles to bottom, at least 5 minutes.
Cover potato-parsley root mixture and microwave until just warmed through but not hot, 1 to 2 minutes, stirring mixture with fork every 30 seconds. Spread mixture evenly over a clean baking sheet and let cool for 10 minutes. Do not wash out the bowl used to microwave grated mixture.
Pour off water from reserved potato liquid, leaving potato starch in measuring cup. Add eggs and stir until smooth. Return cooled potato mixture to bowl. Add parsley, 1/4 teaspoon pepper, and potato starch mixture; toss well to evenly combine.
Line a clean baking sheet with paper towels. Heat 1/4 inch depth of oil in 12-inch skillet over medium-high heat until shimmering but not smoking (350 degrees). Place 1/4 cup of potato mixture in oil and press with nonstick spatula into 1/3-inch-thick disks. Repeat until 5 latkes are in pan. Cook, adjusting heat so fat bubbles around latke edges, until golden brown on bottom, about 3 minutes. Turn and continue cooking until golden brown on second side, about 3 minutes longer. Drain on paper towels and transfer to baking sheet in oven to keep warm. Repeat with remaining potato mixture, adding oil to maintain 1/4-inch depth and returning oil to 350 degrees between batches. Season with salt and pepper.