Vermicular | Rosemary Focaccia

Ingredients

• 3 cups (375 g) all-purpose flour
• 10 g kosher salt
• 10 g brown sugar
• ¾ teaspoon (3 g) active dry yeast
• ¾ cup (180 ml) water
• 5 tablespoons (75 ml) milk
• 5 tablespoons (75 ml) olive oil, divided
• 2 sprigs fresh rosemary, leaves stripped off
• Coarse sea salt, for sprinkling