Lime Cake
a la Wendy

white cake mix
about 3-4 limes
coconut milk (look for the real kind in the can, not the artificially flavored one)
eggs/water per box instruction

Prepare cake according to package directions, with the following substitutes:
put in coconut milk instead of oil
zest and juice 2 limes. sub juice for part of the water added (i.e. my recipe asked for 1 cup of water, so i squeezed the juice into the 1 cup measurer, then filled the rest with water)
Bake according to package directions.

Frost with buttercream frosting, with substituted coconut milk for regular milk, and add more lime juice and zest. and perhaps green food coloring.