- Preheat the oven to 160C
- In a large bowl, mix the flour, icing sugar, sea salt, rosemary and lemon zest until combined
- Pour in the olive oil and combine with your hands
- Push the dough into a baking tray and level until even. Prick with a fork and bake in the oven for 20 minutes, until the top is just golden.
- Cut into even fingers whilst still warm and allow to cool and harden before serving.