Set the grill in your oven to 200°C

Using a paring knife, carefully loosen grapefruit segments along the edge of the rind, taking care not to poke through the rind. Then, loosen segments from each other. I cut a little slice from the bottom of each grapefruit so that would stand easily.

In a small bowl, mix honey, rosemary and cinnamon together and then spoon onto the grapefruit

Place grapefruit halves on baking pan and grill for 3-5 minutes, until honey begins to brown

Serve immediately with a sprinkling of granola or a dollop of yoghurt