Preheat the oven to 175℃.
Brush the base and sides of a 24 cm springform cake tin with olive oil and line the base with baking paper.
Mix together the flour, almond meal, baking powder and salt in a medium bowl and set aside.
Beat the eggs, sugar and vanilla in an electric mixer until well combined.
Mix in the yoghurt and olive oil, then the flour mixture.
Fold in the mandarin purée.
Pour the mixture into the tin.
Combine the raw sugar and allspice and sprinkle over the top of the cake.
Bake for 45-50 minutes until a skewer inserted comes out clean.
Serve the cake warm with a dollop of yoghurt or double cream.