Preheat the oven to gas 7, 220°C, fan 200°C. Make dimples in the dough and press into each 1 chopped clove of garlic and 1 tbsp fresh rosemary leaves. Cover; leave to rise for 10 mins. Drizzle over 1 tbsp oil mixed with 1 tbsp water and bake for 15 mins. Top with the onions and 1 tsp sea salt flakes; bake for 8 mins, or until risen and golden.
Calories 296 (15%), sugar 1g (1%), fat 9g (12%), saturates 2g (10%), salt 0.8g (13%), based on 8 servings.