01 -
Wash, peel, and coarsely grate the russet potatoes directly into a large bowl. Grate the onion into the same bowl. Work quickly as potatoes begin to discolor once grated.
02 -
Place the potato-onion mixture in a clean kitchen towel or cheesecloth. Squeeze firmly over the sink to extract as much liquid as possible. Repeat as needed until the mixture is nearly dry.
03 -
Transfer the squeezed potatoes and onion into a dry mixing bowl. Sprinkle with salt, pepper, and flour. Add the egg and mix thoroughly with your hands until the mixture is cohesive but not wet. Add more flour, 1 tablespoon at a time, if the mixture feels loose.
04 -
Pour vegetable oil into a large, heavy skillet (cast iron preferred) to a depth of about 1/4 inch. Heat over medium-high heat until shimmering. To test, drop in a small piece of potato—it should sizzle immediately.
05 -
Scoop about 2 tablespoons of the potato mixture per pancake into the hot oil. Press lightly with a spatula to flatten to around 1/2 inch thick. Fry in batches, without crowding, for 2–3 minutes per side until golden brown and crisp around the edges.
06 -
Remove pancakes from oil using a slotted spatula. Set on a paper towel-lined rack or tray. Do not stack to preserve crispness.
07 -
Once all pancakes are fried, increase the oil heat slightly. Return each pancake to the pan for a second fry—about 30 seconds per side—until deeply golden and extra crisp.
08 -
Transfer pancakes to a clean paper towel-lined tray. Season immediately with additional salt while hot. Serve warm, accompanied by applesauce, sour cream, or fried eggs if desired.