Malke's Secret Latke Recipe

My dad is the one who makes latke's every year during Hannukah, and his favorite recipe comes from a very peculiar place. There is a children's book in our home, Malke's Secret Recipe, that tells the story of the best latke's in a town. These latke's that Malke makes have a secret recipe that Berel the shoemaker attempts to steal for his family. He writes down how he sees Malke making her latke's, and runs back to his wife to report the recipe. However, because the recipe seems to be so different from their own, they alter it all the way back to their original in the disbelief that it will be any good. My dad, however, is not as ignorant as Berel and his family. He has also decided to steal Malke's recipe, and uses it every year to make incredibly good latke's. Here is the recipe, as told by the story:

5 potatoes, you can leave peels on
6 scallions
3 tbsp. flour
2 eggs
1 tsp. salt, more to taste
1/4 tsp. pepper
1 tsp. lemon juice
1 tsp. parsley flakes
Vegetable oil for frying

Scrub potatoes and grate or shred in food processor. Add rest of ingredients and process until just mixed. Heat oil in large skillet. Carefully drop the latkes by large spoonfuls into hot oil and brown on both sides. Drain on paper towels and serve immediately with applesauce or sour cream.