Rinse the millet several times until the water becomes clear. Peel the onion and chop finely. Peel the potatoes, wash and cut into small pieces.
Boil the potatoes in a saucepan of salted water for 15 minutes. Add the washed millet to the potatoes, add salt and cook until all the water has evaporated, about 25 minutes.
In a preheated frying pan in vegetable oil, fry finely chopped onion until golden brown. Serve the porridge in portioned bowls with fried onions on top.
You can serve the porridge with lard, fried in small pieces, or salted cheese mixed with finely chopped dill.