Olive~Me & Co.’s Olive Oil Potatoes Gratin

  (recipe adapted from cookscounty.com) Ingredients: 2  onions, halved and thinly sliced 1.5 tsp salt ¾ tsp freshly ground black pepper 2  garlic cloves, minced 1  tsp minced fresh thyme  (divided) 1  cup low-sodium chicken broth  (divided) 3-4  LB Yukon Gold potatoes, peeled and sliced 1/8 inch thick 1/2  cup Olive~Me & Co.’s Arbequina EVOO …