Just Desserts

What is your character's favorite dessert? Lemon or chocolate? Vanilla or butterscotch? Baskin Robbins Rum Raisin or Junior's cheesecake or Le Cirque's vanilla panna cotta with lavender-rhubarb sorbet or Grandma's Baptist Butternut Squash Pie? How often do they eat this dessert? What effect does that have on their wallet, their waistline, and their perception of this favorite?