- 300g plain flour
- pinch salt
- 200g cold unsalted butter, diced
- 150g mature cheddar cheese
- 50g freshly grated parmesan cheese
- ½ tsp mustard powder
- ½ tsp paprika
- 2 large free-range eggs, yolks only
Preheat the oven to 200°C/400°F/gas 6.
Sift the flour and a pinch of salt into a bowl. Using your fingertips, rub in the butter until all the lumps are gone and the texture is like fine breadcrumbs.
Stir in the cheese, mustard powder, paprika, and egg yolks. Add 4-5 tablespoons of cold water and mix to a firm dough.
Roll it out on a floured surface, forming a rectangle about 1cm thick. Slice it into 1cm sticks and place onto the baking sheets. Bake for 10-15 minutes, until crisp and golden, then leave to cool on the tray.