To make this very crispy outside butreally soft inside, with lots of irresistible bubbles, you will firstneed to, in a large bowl, dissolve the brewer's yeast in 320 ml ofwater. Then add 320 grams of flour and mix everything together. Coverwith plastic wrap and allow to rise at room temperature for about 2 hours.
After this time, pour 330 ml of warmwater into the bowl with the leavened mixture and stir. Then add 1 teaspoon of sugar, 4 teaspoons of salt and 480 g of flour. Mix againand then pour in 3 tablespoons of oil. At this point, grease your hands and start making folds, then take one edge of your dough and bring it to the opposite side for about 10 times. In this way the dough will streng then and incorporate air. Cover with plastic wrapand let rise for 30 minutes.
Take the dough, fold again, cover with plastic wrap and let rise for 1 hour and a half.
Once this last rising time is over,grease a baking pan (I used a 42x32) and pour in the dough. Roll itout gently with your hands and let it rest for 1 hour.
Now with the fingertips of yourhands press the surface to create the classic "holes" ofthe focaccia. Remember, however, not to totally pierce the dough!
Drizzle a little oil over yourfocaccia and, if you like, garnish with a few rosemary needles.
Preheat the oven to 240°C (464°F) ventilated. Bake your focaccia for 10 minutes onthe lowest rack of the oven and 20 minutes on the middle rack. Check it from time to time to make sure it doesn't burn, every oven is different.
Take it out of the oven and let itcool, then cut it and enjoy all its magnificence. Follow my advice onhow to garnish it, so as to make this wonder even more inviting!