Peel and wash the onions, potatoes and garlic, separate the basil leaves from the stems. Boil the milk.
Grate the potatoes on a medium grater, chop the onion and garlic in a blender. Remove any liquid from the potatoes. Finely chop the basil leaves.
Mix grated potatoes, chopped onion and garlic, eggs, salt, pepper and mix.
Pour boiling milk into the potato mixture in a thin stream, stirring constantly, then add seeds and chopped basil leaves, stir.
Fry potato pancakes in a well-heated frying pan with vegetable oil on both sides until golden brown.
Serve pancakes with sour cream.