Laissez Faire Cake (Banana, berry and chocolate cake)

I got concussed in the weekend, very random accident of an elbow shoved in the temple.  Anyway, on Monday morning, prediagnosis,  I decided to make a cake.   I threw everything into the kitchen wizz, starting with butter, oh dear, just a little left in the house, cooking oil then? None.  The only thing I could find to use was lemon infused olive oil so I added that to the left over softened butter, (about 2 tbspoons butter and 1/3 cup oil) I got a recipe book out but found all the measures in ounces so I decided to wing it, make up the recipe as I went. And here it is… (more…)