You can make your own baking powder by combining 15ml/1tbsp bicarbonate of soda with 30ml/2tbsp cream of tartar. Measure carefully as too much or too little can upset a recipe’s balance.
For the dough, sift the flour, sugar, salt and baking powder into a bowl. In another bowl, mix together the milk and oil. Make a well in the centre of the flour mixture and pour in the liquid mixture.