Drain 1 jar (370 ml) of pitted Kalamata olives, drain and chop. Peel and chop 2 garlic cloves. Wash 1 organic lemon, grate dry and finely grate the peel. Mix with olives and garlic. Crumble 400 g feta, puree with 300 g Greek cream yoghurt. Stir in olive mixture. Season cream with pepper.