Put rice in boiling salted water and let it swell for about 20 minutes, drain well. In the meantime cut cheese into small cubes. Knead minced meat, rice and egg. Season with salt, pepper and cumin.
Form small meatballs out of it and fill them with feta cheese. Fry the meatballs briefly in hot oil, then cook in the preheated oven (electric range: 175°C/ gas: level 2) for approx. 8 minutes. In the meantime wash and chop tarragon.
Mix with crème fraîche. Season to taste with salt, chilli, sugar and lemon juice. Serve the meatballs hot or cold as desired. Serve garnished with the dip and fresh salad.