Procedure
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For Cake: Preheat oven to 350 deg. Butter three 9-inch-diameter cake pans
with 1 1/2-inch-high sides. Line bottoms with waxed paper. Butter paper. Mix
together oil, pineapple, eggs, vanilla and carrots. Mix flour, sugar,
cinnamon, baking soda and salt in medium bowl. Stir into oil mixture. Mix in
walnuts. Divide batter among prepared pans. Bake until tester inserted into
center comes out clean, about 35 minutes. Cook cakes in pans on racks.
For Frosting: Using electric mixer, beat cream cheese, butter, lemon juice and
vanilla until light and fluffy. Gradually beat in sugar. Chill until firm
but spreadable, about 1 hour.
Turn cakes out of pans; peel off waxed paper. Place 1 cake on platter. Spread
3/4 cup frosting over. Top with second cake. Spread 3/4 cup frosting over.
Top with third cake. Spread remaining frosting over top and sides of cake.
(Can be prepared 1 day ahead. Cover with cake dome and refrigerate. Let
stand 3 hours at room temperature before serving.) Garnish cake with flowers.