01 -
Add the cream and butter to a small saucepan. Warm over low heat until the butter melts and the mixture is steaming, then remove from the heat.
02 -
Place the chopped white chocolate in a heatproof bowl set over barely simmering water. Stir gently until smooth, making sure no water gets into the bowl.
03 -
Whisk the warm cream mixture into the melted white chocolate until glossy. Stir in orange zest, orange extract, vanilla, salt, and food coloring if using.
04 -
Cover the bowl and refrigerate for 2-3 hours, or until the ganache is firm enough to scoop and roll.
05 -
Line a tray with parchment paper. Scoop 1-inch portions and roll quickly into balls. If the mixture softens, chill it for 10-15 minutes before continuing.
06 -
Roll each truffle in powdered sugar. Chill until ready to serve, then re-roll in powdered sugar if the coating has absorbed.