Brandade with Potatoes and Kalamata Olives

Ingredients

• 2 medium onions, quartered + 1 small onion, finely diced
• 7 large garlic cloves, 3 halved, 4 finely minced
• 2 bay leaves
• 3 medium potatoes, peeled and quartered
• 1 lb salt cod, desalted per package instructions
• 2 Tbs roughly chopped fresh thyme
• 2/3 cup milk
• ¾ cup extra virgin olive oil + more for drizzling
• 1 cup pitted kalamata olives, rinsed well and quartered
• 2 tsp Salt
• 1 tsp Black pepper
• Fresh thyme stems for garnish