Butterscotch cake with Caramel topping

Staying at the sister's I was asked to bake. Unfortunately, the large and varied group of people meant that my choices were restricted. So I thought about it and decided it was time to try a caramel cake. I know Deb has one, and Dragon makes it a lot. But somehow it's just not caramel enough for me. So I trawled my other two go to sites, and got the cake from Annie, and the topping from Joe. (Joe you're my hero.) (Annie, you're pretty awesome too.)

Piña colada cake

I thought of this before Deb posted, I swear. And you'll see it's not like her recipe. I've been very taken with the idea of making up my own recipes lately, especially ones that incorporate fruit and booze. So I thought, how can I turn a piña colada into cake? I thought about fresh coconut, or frosting with coconut, but I don't like coconut, except as milk. So I decided to put pureed pineapple in the batter and replace the milk/buttermilk with coconut milk. The frosting I finally went with was white chocolate based, because it sets better than a plain buttercream. I think I need to work on it a bit to get the coconut flavour to come out better, but for now, voila!