Combine pineapple, coconut, walnuts, raisins, and maple syrup. Pulse in a food processor about five times. Return to bowl.
Stir in pureed carrots.
Spread mixture ¼-inch thick onto the fruit roll-up trays that go with your dehydrator. Dehydrate according to your machine's directions for fruit leather, typically 8 hours, or until fruit leather is no longer shiny or tacky.
Oven Method: Preheat the oven to 150 F. Spread the mixture onto a silpat on a cookie sheet ¼-inch thick for up to 12 hours, until fruit leather is no longer shiny or tacky. Cut finished fruit leather with a pizza cutter and roll it up with waxed paper.
