1 Duncan Hines yellow butter cake mix
1 (4 oz.) can mandarin orange and juice
4 eggs
1/2 c. Crisco oil (or 1 cube butter)
1 box instant vanilla pudding
1 can crushed pineapple
1 (9 oz.) Cool Whip

Mix cake mix, mandaring orange, eggs and Crisco oil together and bake three 8 inch layers at 350 degrees for 15 to 20 minutes. Add 1 box instant vanilla pudding to 1 can crushed pineapple in own juice. Let thicken. Fold Cool Whip into pineapple mixture. Ice between and all over cake. Refrigerate.