01 -
Place the chopped white chocolate and heavy cream in a microwave-safe bowl. Heat at half power in 20 to 30 second bursts, stirring well after each burst, until smooth.
02 -
Stir in the blue curacao, vanilla, salt, and blue gel food coloring if using. Mix until the color is even and the ganache looks glossy.
03 -
Cover the bowl and refrigerate for about 2 hours, or until the ganache is firm enough to scoop and hold its shape.
04 -
Line a baking sheet with parchment paper. Scoop slightly heaping teaspoons of ganache onto the tray, working quickly so the mixture stays cold.
05 -
Roll each portion between clean, dry hands to form a ball. Immediately roll in blue sanding sugar until fully coated.
06 -
Refrigerate the coated truffles for at least 1 hour before serving. Store covered in the refrigerator and let stand 5 to 10 minutes before eating.