Step 1

Preheat the waffle iron.

Step 2

Grate the potatoes and onion on a box grater, most of the potatoes on the medium holes of the box grater and 1/4 of the potatoes on the small holes of the box grater.

Step 3

In a large bowl, combine the potatoes, onion, 1 teaspoon salt, ground black pepper, egg, and flour until evenly mixed. Remove excess liquid from that settles at the top of the bowl with a large spoon.

Step 4

Spoon 1/4 of the potato mixture into the preheated waffle iron, close and cook until golden and crisp on the outside, 5-8 minutes. You should have about 4 waffles total, if you use a Belgian waffle maker.

Step 5

Serve the potato waffles hot, with butter, sour cream and green onions.