Banana and hazelnut coffee cake

Still on a fruit vibe – a lot less healthy, I know, but I can’t go too long without baking a cake. Can’t help it. And I bet you understand. :)Bananas go ripe and freckled pretty fast in the hot days we’ve been enjoying here and that calls for a quick solution, like the one I found at the Waitrose website – btw, there are wonderful recipes there, I think you should take a look.The yogurt in the