Instructions
- Pre-heat the oven to 180°C / gas 4
- Cut lemons into chunks and whiz in food processor.
- In large bowl add butter and sugar and beat until light and fluffy.
- Add eggs one at a time, beating well. Stir in yogurt, vanilla, pistachio, lemon.
- Sieve in flour and lightly fold to a smooth batter.
- Pour mixture into cake tin and bake for 50 mins until firm to touch.
- Leave to cool in tin for 10 mins then put on wire rack to cool.
- To make icing, mix all ingredients except the peel and spoon over cake.
- Decorate with peel and serve.