1. Remove the skin and seeds from the grapefruit flesh, crush it with a blender and set aside.
2. Put all the ingredients except honey into a casserole, add a small bowl of water, bring to a boil over high heat, then reduce to low heat and simmer for 1 hour, until it becomes sticky and the grapefruit peel is translucent and separated. fire.
3. After cooling, add honey and stir evenly to make honey grapefruit sauce.