01 - Grate the peeled russet potatoes and yellow onion using a box grater or food processor.
02 - Place grated potatoes and onion in a clean kitchen towel, then squeeze thoroughly to remove as much liquid as possible.
03 - Transfer the mixture to a large bowl. Add eggs, all-purpose flour, kosher salt, black pepper, and baking powder. Mix until evenly incorporated.
04 - Pour about 1/2 inch of vegetable oil into a large skillet. Heat oil over medium-high until it shimmers.
05 - For each latke, scoop approximately 2 tablespoons of potato mixture and drop into the hot oil. Flatten gently with a spatula.
06 - Fry latkes for 3 to 4 minutes per side, or until crisply browned. Avoid crowding the pan and cook in batches as needed.
07 - Transfer fried latkes onto paper towels using a slotted spatula to drain.
08 - Present latkes warm alongside sour cream and applesauce. Garnish with chopped chives or green onions if desired.