Preheat your oven to 180 deg C and grease a 22cm baking tin - I used olive oil spray
In a large bowl mix the yoghurt, olive oil, juice and eggs until well combined.
In another bowl combine the flour, suagr, baking powder, salt and lime zest.
Pour the lime mixture into the flour mixture. Using a wooden spoon mix until well combined. Do not overwork the batter.
Pour the cake batter into the baking tin and cook for 45-50 mins. The cake is cooked whern it is browned on top and a skewer inserted into the centre comes out clean.
Allow to cool in the tin for 5 mins before removing. Once cooled completely sprinkle with optional topping. Serve with Greek yoghurt.