Grate the potatoes and drain excess liquid.

In a bowl, combine the grated potatoes, beaten eggs, salt, flour (or matzo meal), baking powder, and grated onion.

Mix all ingredients well.

Heat a skillet and generously grease it with butter or shortening.

Drop the potato mixture by tablespoonfuls onto the hot skillet.

Fry on both sides until golden brown and cooked through.

Serve the latkes hot with sour cream or applesauce.