Step 1

Place potatoes in a saucepan with enough water to cover. Bring to a boil, and cook until tender, 20 to 30 minutes. When done, you can stab them with a fork, and they will fall off easily. Drain, cool slightly, and peel.

Step 2

Preheat the oven to 350 degrees F (175 degrees C).

Step 3

Place 1 cup of almonds into a food processor, and grind to a fine powder. Add sugar to almonds, and process to mix. Transfer to a medium bowl. Add potatoes to the almond mixture, and mash together until it becomes a very thick paste. Roll into 1 inch balls, and roll the balls in chopped almonds. Place cookies on a baking sheet, and brush with egg white.

Step 4

Bake for 10 to 15 minutes in the preheated oven, until the tops are brown. Gently remove from the baking sheets, and cool on a plate in the refrigerator. Serve cold. They are supposed to be squishy when you eat them.