Sanding sugar is fine sugar that can be used to decorate sweets and also to rim cocktail glasses. The sugar crystal is slightly larger than basic white sugar and smaller than sparkling sugar. To add a little bling to your cocktail glass, use a lemon or lime wedge to wet the rim. Pour some sugar into a shallow bowl wide enough to fit the glass then roll the rim gently through the sugar and voilà! You will need ¼ - ½ teaspoon of sanding sugar per glass depending on the size.