For a healthier frozen dessert I used bananas and added a swirl of pureed frozen blueberries. The bananas are sliced, frozen, then processed until smooth. The creamy bananas have no added sugar but I added a tablespoon each of sugar and heavy cream to the blueberries. It has a little bit of bitterness probably because the bananas were not overripe or I didn't fully remove the fibrous membrane on the bananas. I still like the frozen dessert though. Next time I'll add peanut butter, strawberries, or Nutella.