You've met the neurotic, overeating single-gal protagonist of Winston's soggy first novel in countless Bridget Jones knockoffs. But Sophie Stanton, 36, boasts the distinction of having once persuaded a man to walk down the aisle -- and then having lost him to cancer. ''How can I be a widow?'' she moans, oozing self-pity. ''Widows wear horn-rimmed glasses and cardigan sweaters that smell like mothballs and have crepe-paper skin and names like Gladys or Midge...'' After spending several months devouring whole bags of Oreos in bed -- an exhausted chick-lit cliche -- Sophie moves from Silicon Valley to Ashland, Ore. Here, she falls for a cleft-chinned stage actor, acquires an eccentric circle of new friends, and opens a cozy, acclaimed bakery in a denouement as cloying and unnutritious as one of her miniature cherry cheesecakes.