Desiccated Coconut is finely shredded sweetened coconut primarily used as a candy making ingredient.
Coconut Macadamia Truffles:
Finely grind white chocolate in a food processor and transfer to a bowl. Pulse nuts in food processor until finely ground (be careful not to grind to a paste).
Bring cream to a simmer in a medium skillet. Remove from heat and stir in rum. Whisk in white chocolate until melted and ganache is smooth. Stir in nuts. Pour ganache into a plastic-wrap lined 8-inch square baking pan and chill, uncovered, until firm, about 4 hours.
Invert ganache onto a work surface and remove plastic wrap. Cut ganache into 64 squares and roll each piece between your palms to form a ball. When all balls are formed, roll in coconut to cover completely, then chill truffles, covered, until ready to serve.