Gather your dandelion heads. Approximately 40-60. Don't worry it doesn't take long. Alternatively, you could harvest the petals as you go until you have a quarter cup.
I don't wash mine. But you can wash yours if desired.
Add the petals and 4 cups of water to the blender.
Blend on high for a minute or two until well blended.
Strain if desired. I don't. Most of the foam with remain on top when pouring into the ice cube tray molds, and then can be discarded. But if you are particular about sediment and texture you may want to.
Pour into trays and freeze!
Throw one into your drink once a day and reap the benefits of this simple recipe.