Fill a blender with frozen strawberries, and then add enough liquid to just cover the fruit. Use about 1 cup of strawberries per person.
Pulse the blender on high until all of the strawberries have pureed into the liquid. The smoothie should be thick and icy, but if it isn't, blend in a few more frozen strawberries or a handful of ice cubes.
Taste the slushie mix and add a sweetener -- sugar, honey or artificial sweetener -- to adjust the flavor according to your preferences. Pulse the blender to mix in the sweetener. Taste the slushuie again and repeat the process as needed.
Remove the lid from your blender. For a fancier presentation, dip the rim of each glass into the slushie mix, a bit of the liquid you used or honey, and then dip it into granulated sugar. Rimming the glass is optional.
Pour the slushie into glasses. Garnish each glass with a fresh strawberry on the rim, or place it in the slushie if you'd like to dress up the presentation further.
