Lime Zucchini Cake

Chocolate zucchini cake tastes overwhelmingly of chocolate, which I love. But I thought I would challenge myself to make a cake in which zucchini was more apparent. I'm not sure if I'll make a second attempt as this one was very very heavy. It may work better with regular wheat flour instead of gluten free.
 

 It was more like a heavily frosted pancake. No recipe as it wasn't something I want to repeat!