Combine Cheddar cheese, flour, butter and salt in a food processor pulse until dough is consistency of course sand. Add water, 1 tsp at a time, until dough is moistened.

Wrap dough in cling film and refrigerate for 30 minutes.
Preheat oven to 180 C / Gas 4. Line a baking tray with baking paper.

Roll dough onto a lightly floured work surface and cut into desired shapes, such as flowers or fish, using a cookie cutter. Arrange shapes on the prepared baking tray.