I really love grapefruit, usually I just segment a few and put them in the fridge to grab for a snack. But I remembered my mom broiling grapefruit as a kid with sugar on it. So I broiled it with no sugar, and it made it just as sweet. My toddler loves it. I recommend cutting around the edge before you broil, because it is hot to touch after. I line my baking sheet with foil because I don’t want any messes. Then I just turn the broiler on and watch, until my edges of my grapefruit are turning brown and it is bubbling. It usually takes about 5-8 min. at 500 degrees.