Will and I have gotten curious about making cocktails and this is one he came up with on the 4th of July. We have discovered that it is just as good without the alcohol and really helps to get through an entire watermelon!
1 to 1 1/2 shots of vodka
handful of frozen blueberries
Blend watermelon chunks, ice and simple syrup in a mixer. When slushy-like, pour into chilled mug and add desired amount of vodka. Top with frozen blueberries.
*Simple syrup involves boiling 1 part water and 1 part sugar. What Will did to spice it up was blend it in a food processor with mint leaves, then put it through a strainer to retain the flavor, but not the leaves.