In a medium-sized mixing bowl, add water and yeast and let rest for 5 minutes. Add salt, olive oil and flour and mix until all the flour has been absorbed. Note that this is a hydration dough, and it will be sticky and wet to the touch. Transfer dough to an 8x8-inch glass covered baking dish (or similar), cover and let rest for 30 minutes.
With damp hands, perform 1 set of stretch and folds and let rest for another 30 minutes. *I’ve included notes below in case folding is new to you.
Next, with damp hands perform 2-3 coil folds and let rest for 30 minutes between each fold.
Cover and place in the fridge overnight for at least 12 hours or as long as 18 hours.