With the morning coffee or the afternoon cuppa.any time, really, is a good time to have a cookie or a cupcake. This collection of fabulously good-looking and great-tasting cupcakes, cookies, muffins and slices is worth staging a stop-work meeting for. Or, perhaps, reintroducing that grand custom from a bygone era high tea. Take out the best china, polish up the silver cake slice, iron the lovingly embroidered linen napkins and make an event of it. Peach and sour cream slice, anyone?