Caramelized Onion and Herb Ciabatta

Preparation

1. Step 1

   Prepare the onion-and-herb mixture at least 1 hour before making the dough or the day before. In a large pan, sauté the onions in the olive oil over medium heat until they start to caramelize or turn brown (it will take 10 to 15 minutes). Add the sugar and continue to cook until the sugar melts and the onions turn golden brown. Add the balsamic vinegar and stir until the onions are evenly coated. Turn off the heat and add the herbs, tossing just until they are evenly distributed and wilted. Season with salt and pepper. Set aside to cool.

   Step 2

   Make the dough as directed in the master formula. When performing the 2 stretch-and-fold steps, spread one-quarter of the onions (or less, if you are making 3 smaller loaves) over each piece of dough each time and fold them in. Proceed as described in the poolish version.