This is a very moist gluten-free cake, rich and luxurious tasting. I make this with my "I Can't Believe It's Not Gluten! Gluten-Free Cake Flour Mix" (Recipe #189120) but you can use most premixed gluten-free flours as long as they contain xanthan or guar gum. Use extremely ripe Hachiya persimmons (not Fuyu). They should be so mushy that they nearly fall apart in your hands.