01 - Grate potatoes and onion using a box grater or food processor.
02 - Place grated potatoes and onion into a clean kitchen towel and wring out as much liquid as possible.
03 - Transfer the mixture to a large bowl; add eggs, flour, salt, and pepper. Mix thoroughly until uniform.
04 - Preheat vegetable oil in a large skillet over medium-high heat until shimmering.
05 - Drop heaping tablespoons of mixture into hot oil, flatten gently with a spatula, and fry for 3 to 4 minutes per side until golden and crisp.
06 - Transfer cooked latkes to a paper towel-lined plate to absorb excess oil.
07 - Repeat frying with remaining batter, adding oil as necessary to maintain frying temperature.
08 - Serve latkes hot, accompanied by optional sour cream or applesauce.