Mix all the ingredients in a large bowl, taking care not to put the yeast on top of the salt. Knead well with your hands and knuckles, then leave to rise for 1 hour.
Oil a 450 g/1 lb loaf tin. Tip the dough out onto a lightly floured surface and mould into a sausage shape. Put back in the tin and leave to rise for 30 minutes–1 hour.
Preheat the oven to 230°C/450°F/gas mark 8. Dust the top of the dough with flour, put the tin in the oven and bake for 35 minutes.
Take out of the oven and turn the loaf out onto a wire rack to cool.