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["Coat two 15"" x 10"" x 1"" jellyroll pans with cooking spray; line with wax paper, and coat wax paper with cooking spray. Set aside.", "Beat eggs in a large bowl at medium-high speed of an electric mixer 5 minutes. Add water, beating at low speed until blended. Gradually add cake mix, beating at low speed until moistened. Beat mixture at medium-high speed 2 minutes. Fold in grated carrot.", "Spread batter evenly in prepared pans (layers will be thin). Bake, one at a time or in separate ovens, at 350u00b0 on the middle rack 13 minutes or until each cake springs back when lightly touched in center.", "Sift 1 1/2 tablespoons powdered sugar in a 15"" x 10"" rectangle on a cloth towel; repeat with 1 1/2 tablespoons sugar and a second towel. When cakes are done, immediately loosen from sides of pan, and turn each out onto a sugared towel. Peel off wax paper. Starting at narrow end, tightly roll up each cake and towel together; place, seam side down, on wire racks to cool completely.", "Drain pineapple, reserving 1/4 cup syrup. Press pineapple between paper towels to remove excess moisture. Combine pineapple, cream cheese frosting, and 1/2 cup pecans; stir well.", "Unroll cakes; brush each lightly with 2 tablespoons reserved pineapple syrup. Spread each cake with half of frosting mixture. Reroll cakes without towels; place, seam side down, on serving plates.", "Cover and chill at least 1 hour. Dust cakes with additional powdered sugar before serving. Garnish, if desired.", "Note: For spice cake mix, we used Duncan Hines.", "Note: This recipe makes 2 cake rolls, so it's ideal for a make-ahead dessert for a crowd. Or give the second roll as a gift."]