Foolproof recipe to make sour dough including starter

[sheepdreams]

Hello mumsnetters. Looking for the holy grail in starter and sourdough recipes. Lots in books, but would prefer one from those who have tried and tested them. TIA.

I used this: https://www.kingarthurbaking.com/recipes/sourdough-starter-recipe works really well
for the sourdough itself I use
50g starter
350g water
500g strong flour
12g salt

I mix the starter and water till milky
add the flour and salt
stir until it comes together in a shaggy ball of dough
rest for a hour
stretch and fold and rest for a hour
stretch and fold and rest until risen
shape then bake
lots of videos on you tube to help with shaping and resting