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["Pre-heat the oven to about 180 Celcius (around 350 Fahrenheit / Gas Mark 4), or perhaps just a little less.", "Lightly oil or grease a small (1Lb) loaf tin or lightly flour (or oil) a flat baking tray if you don't have / want to use a loaf tin.", "If substituting for the buttermilk with milk and lemon juice then do that now and put it aside.", "Sieve/sift the flour into a medium sized mixing bowl and add the salt. Scoop up handfuls and allow to drop back into the bowl to aerate the mixture.", "Add the Sultanas and if using them, caraway seeds and vitamin C powder.", "Stir together with a wooden spoon.", "Add and stir in the baking soda.", "Add enough of the buttermilk to make a soft dough. Now work quickly as the buttermilk and soda are already reacting. Knead the dough lightly - too much handling will toughen it, while too little means it won't rise properly. It should require a couple of minutes at most. Basically you're adding the buttermilk as you're kneading it just enough to work the ingredients together properly at which point it needs to be baked straight away in the hot oven.", "If using a baking tray rather than a loaf tin, then form a round loaf about as thick as your fist. Otherwise shape it to a similar size but such as will fit in the loaf tin.", "Place it on a lightly-floured baking tray and lightly cut a cross in the top with a floured knife ""to let the faeries out so they don't jinx your bread"