1. Preheat oven to 375°.
2. Coat a 2-quart baking dish with cooking spray.
3. Combine sugar and cinnamon in a large bowl; stir well. Add eggs, egg whites, vanilla, and salt; stir well. Gradually stir in milk. Add the bread cubes and chocolate; stir well and let stand 5 minutes. Transfer mixture to baking dish.
3. Bake for 50-55 minutes or until puffed and set in center. Let stand at least 10 minutes.
4. While pudding bakes, puree thawed raspberries with their syrup in a food processor. Transfer mixture to a strainer placed over a bowl. Press on solids with a wooden spoon; discard seeds. Reserve sauce. Spoon 1/8 of pudding into dessert bowls or glasses. Serve with raspberry sauce. Garnish with fresh raspberries and mint sprigs, if desired.