Cook the egg in boiling water for 8 minutes until soft and waxy. Clean, wash and cut spring onions into rings. Wash parsley, dab dry and chop. Mix quark, yoghurt, spring onion rings and parsley. Season to taste with salt and pepper. Peel garlic and chop roughly.
Mix oil, garlic and herbs. Season with salt and pepper. Toast the slice of bread and brush it immediately with the garlic oil. Halve the egg. Arrange on a plate with the quark, the slice of bread and possibly salad