Mushroom Khachapuri

Ingredients

• 3 ⅓ cups (835 mL) all-purpose flour
• ¼ tsp (1.25 mL) instant active dry yeast
• 2 tsp (10 mL) fine sea salt
• 1 ½ cups (375 mL) water
• 1 head garlic
• 6 tbsp (90 mL) olive oil, divided
• Coarse salt
• 1 tbsp (15 mL) unsalted butter
• 2 tsp (10 mL) all-purpose flour
• 1 cup (250 mL) heavy cream (35% MF)
• 1 large sweet onion, peeled and sliced
• 1 cup (250 mL) sliced button mushrooms
• 1 tbsp (15 mL) fresh rosemary (plus more for garnish, if desired)
• 4 eggs
• ½ cup (125 mL) shredded mozzarella cheese
• Red pepper flakes