For the cakes-

Step 1: Prepare three round 9″ pans by lining the bottoms of each with 9″ circles of wax paper.

Step 2: Grease the wax paper with Pam and then sprinkle with flour.

Step 3: Mix the cake mix, lime jello, oil, eggs, orange juice and water together for 2 to 3 minutes at medium speed.

Step 4: Pour an equal amount of the batter into each of the three lined cake pans.

Step 5: Bake at 350 degrees for 25 minutes.

For the glaze-

Step 6: While the cakes are baking, knead two key limes against a hard surface to loosen the juice inside of them.

Step 7: Cut each of the key limes in half.

Step 8: Squeeze 1/4 cup of fresh key lime juice into a small bowl.

Step 9: Pour 1/4 cup of bottled lime juice into the bowl of fresh lime juice.

Step 10: Mix in 4 tbsp. of confectioners sugar.

For the icing-

Step 11: Mix the margarine and cream cheese together.

Step 12: Mix in the remainder of the box of confectioners sugar.

Step 13: Add the vanilla, and mix until it’s smooth.