Mm, we can't get enough of these at our house. It is not a superduper sweet muffin, but a muffin where the flavors of the ingredients come out. And it is just sweet enough to fulfill that certain longing for something sweet. Yet is is pretty low sugar and packed with healthy ingredients. Of course you can omit the raisins or the walnuts, but I think they're perfect as-is. :) My own recipe. I love to tinker with muffin recipes. These have a beautiful crown and a gorgeous color. And of course they make the house smell heavenly when they're baking.