Combine all ingredients in the large mixing bowl and - with your hands - form a rough dough
With your dough scraper, turn out the rough dough onto a clean working surface and knead by hand for at least 10 minutes until the dough has become elastic and smooth. Have a jug of water next to you when kneading and wet your hands every now and then to keep the dough well hydrated.
Shape the dough into a ball and place back into the bowl, cover with the lid and leave to rest for about 45 minutes at room temperature. During this time, the dough should grow in volume significantly.
Punch down the dough and shape into a loaf which fits into the loaf tin well.
Place into the loaf tin and cover with a plastic bag, leaving room for the dough to rise at the top, so you avoid the dough sticking to the plastic.
Leave to proof for 1 hour or so until the dough has roughly doubled in size.
Preheat the oven to 200°C for at least 15 minutes.
Place the loaf tin (without the plastic bag) in the oven (on a shelf that leaves ample room at the top for the bread's "oven spring").
Bake for 10 minutes, then turn the heat down to 180°C and bake for another 35 minutes.
Cool the white bloomer bread loaf on a wire rack.