So I have tried some different ideas for frozen yogurt out of a home ice cream maker...used strained whole-milk (very fatty, local, organic, homemade--yay!) yogurt, added no extra cream or milk because that has liquid, added a berry juice-cornstarch-honey concoction, added some vodka, and roasted berries. Good the first night, totally rock solid after a day in freezer (and softened in a hot kitchen for 15 minutes, which would melt any regular frozen treat, like the homemade sorbet next to it). What else should I do to make frozen yogurt that is soft enough to scoop or at least yields to a hot spoon? I don't want to adulterate it so far as to make it essentially ice cream (custard base and all that). Should I forget it?