These were really nice.. I used wholemeal self raising flour, so left out the baking soda & the yoghurt milk combo..I needed to add a little more milk but I think that was due to me using wholemeal flour..I also used lemon yoghurt which worked lovely with the banana..tasted great straight from the pan..no toppings really needed. Thanks for posting!
The banana and egg trick works, Podkayne. Didn't miss the oil and sugar a bit and I adored the blueberries and walnuts. I used whole wheat rather than all-purpose flour and it worked just fine.