|white peach and blueberry--no sugar!|
The white peaches were so sweet that I just pureed them and poured them straight into the popsicle mold. I added half a dozen blueberries for interest. The popsicles were a hit!
I can see this working with lots of different kinds of fruit: strawberries, watermelon, even applesauce! Depending on the sweetness of your fruit, you might have to add some kind of sweetener: sugar, simple syrup, honey, agave. No matter how sweet your strawberries seem, you will probably have to add some sugar. For watermelon, you might want to add some lime zest and lime juice to cut that "fishy" smell. Then add a little agave to balance out the lime juice.
The key is to taste the pureed fruit before you pour it into the mold. Sometimes, you may not need any sweetener. You've gotta feel good about that!
For more about homemade popsicles, check out this post: