Heat oven to 350°F. In 8-inch skillet, melt butter over low heat. Add apple, cranberries, brown sugar, pistachios and brandy; cook 3 minutes or just until apples are tender, stirring frequently.
Cut Brie round in half horizontally; place bottom half in ungreased 9-inch pie pan. Spoon half of fruit mixture over cheese; place top half of cheese over fruit. Top with remaining fruit mixture. Secure with 3 toothpicks.
Bake 15 to 20 minutes or until cheese is soft. With broad spatula, slide Brie from pie pan onto serving platter. Spoon any syrup and fruit from pan over top. Serve warm with baguette bread slices.