I had a bunch of bananas that got too ripe too quick, so I peeled them and stuck them in the freezer. I just took two, about a cup or so of milk, and a spoonful of nutella (though you could substitute with a bit of chocolate syrup or peanut butter) and blended it all up. I didn't even have to add sugar and it was delicious! It tasted just like icecream, but much healthier. I used 1% milk, but you could use whatever you like best. Would make an awesome breakfast shake! Traditional recipes use ice, but I always feel like the ice waters the shake down. You could freeze just about anything and use it! I might experiment with freezing apple slices next time. Great thing to do with over ripened fruit! Also, instead of sugar to sweeten it, you could add a bit of honey.