Turn broiler on to high heat.

Wash grapefruit and cut in half along the equator of the fruit. Separate grapefruit sections from the peel and membrane with a paring knife.

Place both halves on a baking sheet lined with foil or parchment paper. (Watch parchment paper closely while broiling as it can burn)

If desired, mix together the turbinado sugar and ground ginger. Sprinkle 1/4 tsp. of the mixture on each half of the grapefruit.

Place pan of grapefruit under the broiler and broil for 3 to 5 minutes till fruit is warm and tender.

Remove from oven and enjoy!