Grape Slushie Floats
2 pounds seedless green grapes, frozen
3/4 cup (180 grams) Concord grape juice, or more as needed  
Mint Simple Syrup, recipe follows
Honey, for glass rims  
1/3 cup rainbow sanding sugar, in a small plate
Vanilla ice cream, for serving  
1 cup (200 grams) granulated sugar
Handful fresh mint leaves  
Instructions:
Combine the frozen grapes, juice and 1/4 cup Simple Syrup in a high-powered blender and puree until smooth and slushy-like, adding additional grape juice if needed.
Dip a small pastry brush (or your finger) into some honey and brush the rims of the serving glasses. Dip the honey-rimmed glasses into the rainbow sanding sugar, rolling gently to coat. Put 2 to 3 scoops of ice cream in each glass. Pour in the slushies and serve immediately.
Combine the granulated sugar and 1 cup water in a saucepan and heat gently until the sugar dissolves. Remove from the heat, then add the mint and cover. Steep for 20 to 30 minutes. Remove and discard the mint.
