After weeks of being a shadowy presence, my kitchen "mojo" seems to be returning, judging by the number of times my eyes have strayed to my pantry cupboard door and the mounting desire to use my KitchenAid mixer. So, yesterday, I made the very easy peach and blueberry crumble you see up there. I saw some slightly bruised blueberries going cheap at my usual supermarket and vaguely recalled a clutch of rose-flushed, yellow peaches rolling around in my fruit drawer. True enough, when I got home,...