Clean the radishes, wash them and cut them into sticks. Put something aside for garnishing. Cut cress from the bed, put something aside for garnishing, chop the rest finely. Mix crème fraîche with radishes and cress, season with salt and pepper.
Clean and wash spring onions. Cut 1 spring onion into fine rings. Peel onion and garlic, dice finely. Mix minced onion, onion, garlic and eggs. Season with salt, pepper and chilli powder.
Heat the oil in a pan. Spread the minced meat mixture in it in portions to form flat buffers. Fry for 2-3 minutes on each side. Take out, drain on kitchen paper, keep warm. Process the rest of the mince in the same way.
Serve the buffer with radish dip, Asian sauce and the rest of spring onions. Sprinkle with set aside radishes, cress and spring onion rings.