Cheese scones

• 225 g (8 oz) plain flour
• 1 level teaspoon sodium bicarbonate
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Preheat the oven to 190°C, 375°F, Gas Mark 5. Sieve the flour, sodium bicarbonate, cream of tartar and salt into a bowl.

Rub in the butter, stir in the grated cheese, then make the mixture into a firm dough with buttermilk or sour milk.

Roll out 2 cm (½ in) thick on a f