Preheat oven to 180C. Line 7 inch 18cm spring release or loose bottom tin with parchment paper.
step 2
Mix first three ingredients in a food processor, press into base of tin, bake for 15mins
step 3
Place remaining ingredients with grated rind and 4 tbsp juice in food processor , blend until smooth. Add to tin, bake for 35 - 40 mins until set, cool for 30 mins, dust with icing sugar , serve warm.