Put potatoes and onions in blender; add milk and chop. Add rest of ingredients; turn to blend. Blend until mixed.
Heat electric frying pan to 350 degrees; grease lightly. Drop potato mixture by large tablespoonful into fry pan. Cook until golden brown on underside; turn and cook on other side until golden brown.
Serve hot with sour cream or butter and syrup. Makes 24 pancakes.