Step 1

Preheat oven to 350 degrees. Grease 3 - 8 inch round cakes pans or 1 - 9x13 cake pan.

Step 2

In a large mixing bowl, add cake mix and gelatin. Add 1 cup oil and ¾ cup orange juice and beat on low.

Step 3

Add eggs, one at a time, beating after each addition. Add lime juice and vanilla. Beat 2 minutes on med hi, scraping sides.

Step 4

Pour into cake pans. Bake 8 inch layers 22-25 minutes or until toothpick inserted comes out clean. Bake 9x13 inch cake 27- 30 minutes. Cool completely before icing with Key Lime Cream Cheese Frosting.

Step 5

*For the stacked layered cake, I used three 8 inch pans and cooked them for 27 minutes at 350 degrees.

Step 6

Beat 1/2 cup butter and 8 ounces cream cheese until smooth, add confectioners sugar with a mixer on low. Add lime juice and vanilla. Mix until smooth. Frost cake.