Shortbread Cookies with Blueberry Sparkling Sugar
Store-bought decorative sugars just add color and sweetness to baked goods. But when you make your own, like the blueberry sugar here, you add flavor and antioxidants as well.
To make ahead: Store sparkling sugar (Steps 1-2) airtight at room temperature for up to 1 month. Store cookies airtight for up to 1 week or freeze for up to 1 month.
Equipment: Parchment paper
Tip: Freeze-Dried Fruit for Food Coloring
Freeze-dried fruits have all their water removed in a heat-free, vacuum process that also protects colors, keeps flavors fresh and fruity and creates a crumbly texture (unlike the leathery, traditionally dried ones). Ground into powder, they're ideal for coloring.
Where to Buy: Both freeze-dried fruit and pre-ground powders are readily available. Look for them at the supermarket with other dried fruit or online at amazon.com.
To Prepare Them: Grind freeze-dried fruits in a food processor until they become a fine powder. (If you find dried fruits already powdered, there's no need to grind them.)