Ingredients :

1 18.5 oz box Lemon Cake Mix
1 cup Vegetable Oil
4 Eggs
1 small 3 oz box Lime Gelatin
3/4 cup orange juice
1/2 cup butter
8 oz softened Cream Cheese
Juice for 1/2 Lime about 3 tbsp
4 cup Powdered Sugar

Instructions :

Preheat oven to 350.
Grease two 9 inch cakes pans.
Mix together cake mix, gelatin, oil, eggs, lime juice and orange juice.
Pour into prepared pans.
Bake for 25-30 minutes or until toothpick inserted in center comes out clean.
Allow to cool.
Beat together butter and cream cheese until fluffy.
Gradually add powdered sugar, mixing until blended.
Frost cake.
You can optionally garnish with lime zest and lime slices.