Okay, this whole idea is weird, but it came to me in a dream and that makes it worth exploring, in my book. In my dream, my stepdaughter had perfected a recipe for watermelon/tomato sorbet by adding a small amount of mushroom; she had thereby achieved a refreshing summery not-too-sweet sorbet or granita that had a hint of umami (from the mushrooms). So my question is, how do I go about trying to create this thing so I can taste it? Any suggestions? I thank anyone who can help me achieve my dream.