Preheat oven to 375°F (190°C).
Grease muffin tin with olive oil.
Mix flour, baking powder, salt, pepper in bowl.
Whisk olive oil, milk, eggs in separate bowl.
Add minced garlic to wet ingredients.
Combine wet and dry ingredients gently.
Fold in rosemary and Parmesan cheese.
Fill muffin cups three-quarters full.
Sprinkle coarse sea salt on top.
Bake for 18-20 minutes until golden.
Cool in pan for 5 minutes.
Transfer to wire rack before serving.