Steps
- Preheat the oven to 375°F / 190°C. Mix 225g of rolled oats, 60g of whole-wheat flour, 1 teaspoon of salt, ½ teaspoon of sugar, and ½ teaspoon of baking soda.
- Rub in 60g of diced butter until coarsely crumbed. Gradually stir in 60ml of just-boiled water, adding a little more if needed to form a thick dough.
- Roll out on a floured surface to ¼in / 5mm thick and cut into rounds. Place on a baking sheet.
- Bake for about 20 minutes, until golden, then cool on a rack.