Pour the flour, sugar and salt together in one bowl. Mix with your spatula until it is all combined.
Mix the active dry yeast with the water until the yeast is fully dissolved.
Add the milk and vinegar to your yeast mixture. Mix well.
Add this milk yeast mixture to the flour mixture and combine until you have a shaggy dough.
Use your fingers to gently combine all the ingredients together until you reach a sticky dough consistency. This should take no longer than 1 minute.
Gently roll the dough into a a ball (it does not need to be perfect, avoid using any extra flour here, it is ok if it is slightly sticky)
Place the ball of dough into the mixing bowl and cover with the lid (or cling wrap). Keep it in a dark, dry, warm section of the house for up to 4 hours. Keep checking every hour to see if your dough is rising. By the end of the 4 hours you should have dough that has almost tripled in size.
After the proofing period, pre-heat oven to 175 degrees Celsius
Flour a flat empty surface and tip the dough over. Lightly sprinkle flour over the dough so it is easier to work with. Gently shape the dough into an oblong shape or a rectangular shape. Do not roll it over, or change the sides around. This should take 30 seconds, no more. Don't get tempted to fidget with this work of art! Keep this step as simple as possible.
Place this shaped dough at the center of the parchment covered baking tray
Bake this in the middle rack of your oven, for 30 minutes. Your bread should be golden brown before you take it out. If you see it slightly lighter, keep it in for another 5 minutes before switching off the oven.
Once baked, carefully remove the bread from the oven and place the bread onto a wooden board and let it slightly cool. You can cut the bread on the edges to just double check if its fully baked.
You can store this bread for up to 1 week (7 days) in an airtight container to contain its freshness.