When you see lovely watermelons, honeydews, and cantaloupes on sale, buy them up. Eat half, then cube and freeze the other half. When you want a quick dessert or smoothie, pull out a bag of frozen melon and whip this up.

Add all the ingredients to a food processor or blender and process until just smooth. Don't blend too much, or the sorbet will become oversoft. Serve immediately or stick it into the freezer to enjoy later.