|Plain flour||1 Pound (450 Gram, 4 Cups)|
|Salt||5 Milliliter (1 Teaspoon)|
|Soda bicarbonate||5 Milliliter (1 Teaspoon)|
|Cream of tartar||5 Milliliter (1 Teaspoon)|
|Buttermilk||12 Fluid Ounce (350 Milliliter, 1 1/2 Cups)|
1. Preheat the oven to 220°C/425°F/ Gas 7. Flour a baking sheet. Sift all the dry ingredients into a mixing bowl and make a small well in the centre.
2. Add the buttermilk and mix quickly to a soft dough. Turn on to a floured surface and knead lightly. Shape into a round about 18 cm / 7 in across and put on the baking sheet.
3. Cut a deep cross on top of the loaf and sprinkle with a little flour. Bake for 25-30 minutes, then transfer the soda bread to a wire rack to cool.