#1 Fill bowl of food processor with frozen fruit and pulse several times to start the puree #2 Add yogurt and sugar and puree on high until smooth, stopping if needed to scrape down the sides of the bowl and push contents to the bottom #3 Frozen mix will be soft - spoon about 1/2 cup onto a warm waffle, top with another waffle, and serve immediately, or freeze yogurt mixture (without waffles) to use later (keeps in freezer for up to 3 months).