We celebrated my cousin's birthday over Thanksgiving, which is just two days before my own. She requested a yellow cake and allowed me to pick the icing, so I tried a key lime buttercream for the first time. It was delicious, and very easy to make. It's the same basic recipe as a regular buttercream, except you substitute the juice of two or three limes for the milk you would usually add the to confectioner sugar/butter, and also add the rind of two limes. I gave it a couple of drops of green icing for good measure, and topped with coconut. All were pleased, even if it was more of a tropical themed cake, and we were snowed in.
Mr. SevPrez loved it so much that we picked up a plastic knife and fork at a rest stop on the ride home so he could cut a piece from the hunk of cake we were sent home with. That's devotion.