Clean or peel, wash and finely grate the vegetables. Peel and finely chop the onion
Fry the onion and vegetables in 1 tsp. oil. Add groats. Deglaze with 200 ml water. Bring to the boil, stir in broth. Let it swell for about 10 minutes at low heat, stir more often
Mix buckwheat mass and egg yolk, season. Coat aluminium foil with 1 teaspoon of oil. Spread the mixture thickly on top, let it cool down
Mix yoghurt and herbs until smooth. Season to taste with salt, pepper and lemon juice
Cut buckwheat mixture into approx. 8 small corners or shape into talers. Fry in 2 teaspoons of hot oil for 2-3 minutes on each side until golden brown. Serve with the yoghurt dip
The dish contains 1 g potassium, 5 mg iron, 330 mg calcium and 100 mg magnesium (each 1/3-1/2 of the daily requirement!)