In a small saucepan, heat the heavy cream over medium heat until it starts to simmer. Do not let it boil.
Mix with Chocolate:
Place the chopped white chocolate in a heatproof bowl.
Pour the hot cream over the chocolate and let it sit for 1-2 minutes.
Gently stir the mixture until the chocolate is completely melted and smooth.
Add Flavor:
Stir in the lemon zest into the melted chocolate mixture. Add a few drops of yellow food coloring if desired for a more vibrant color and lemony appearance.
Chill:
Cover the bowl with plastic wrap and refrigerate for at least 2 hours or until the mixture is firm enough to roll into balls.
Roll into Truffles:
Once the mixture is firm, use a teaspoon or a small melon baller to scoop out portions of the mixture.
Roll each portion into a smooth ball between your palms.
Coat:
Roll each truffle in powdered sugar until evenly coated.
Chill Again:
Place the coated truffles on a baking sheet lined with parchment paper and refrigerate for another 30 minutes to firm up.
Serve:
Once the truffles are firm, they are ready to be served. Enjoy!