Mix all the ingredients and knead the dough, then let it rest for about an hour in a greased baking dish.
Every 45 minutes or so (3-4 hours), fold the dough 4-5 times using a coil or petal fold. (The dough will stick, use wet hands.)
When you are done folding, refrigerate the dough for about 8 hours.
Grease a baking pan with 1-2 tablespoons of olive oil, and then flatten the dough. Drizzle the dough with olive oil and "massage" the dough with wet fingers and leave to rise for about 9 hours at room temperature.
Preheat the oven to 220 degrees in the lower top baking mode.
Once the dough is cooked, drizzle the top with a little olive oil and add the topping, I used rosemary and olive berries. (For focaccia, I prefer the dough to overcook rather than undercook.)
When the oven is hot, steam the dough and bake it for about 30-35 minutes (if the internal temperature of the dough reaches 90 degrees, it is cooked.)
Leave to cool and then serve. Happy baking everyone!