Add the almond flour and powdered sugar to a food processor. Pulse a few times until the mixture looks fine and evenly combined.
Transfer the mixture to a bowl. Add the lightly beaten egg white, orange zest, and 2 tablespoons of orange juice.
Mix until a soft marzipan dough forms. Add the remaining 1 tablespoon of orange juice only if the mixture feels too dry.
Lightly dust a piece of parchment paper with powdered sugar. Shape the marzipan into a firm log or cylinder.
Wrap the marzipan log in parchment paper and chill in the refrigerator for 2 hours, or until firm.
Remove the chilled marzipan from the refrigerator and slice it into 1/2-inch pieces (about 1 cm thick).
Melt the white baking chocolate using a double boiler. Stir gently until smooth.
Dip each marzipan piece into the melted white chocolate, letting any excess chocolate drip off.
Place the coated truffles on a parchment-lined tray. Sprinkle with candied lime zest while the chocolate is still soft.
Chill the truffles in the refrigerator until the chocolate is set.