Boil eggs in boiling water for about 8 minutes until hard. Clean, wash and finely dice spring onions. Wash dill, shake dry, pluck flags from stems and cut finely. Cut cress from the bed with scissors
For the sauce, mix yoghurt and salad cream and season with prepared herbs, except for some cress for garnishing, and season to taste with salt, pepper and vinegar
Drain the eggs, rinse with cold water, peel and cut into fine cubes. Mix sauce, spring onion and eggs. Cover bread slices with egg salad and garnish with cress