Pig Picking Cake
["1 box yellow butter cake mix", "1 stick oleo, softened", "4 eggs", "1 tsp. vanilla", "1 (11 oz.) can mandarin oranges, drained (reserve juice)"]
["Combine 1/2 cup reserved orange juice with cake mix and oleo. Add eggs one at a time; beat for 1 minute.", "Add oranges and vanilla.", "Pour into greased 9 x 13-inch pan or in 3 small cake pans.", "Bake at 350\u00b0 for 30 to 35 minutes."]
["yellow butter", "oleo", "eggs", "vanilla", "mandarin oranges"]