1. Generously spray the slow cooker crock pot with non-stick spray or lightly oil the inside.
2. Combine all ingredients in a mixing bowl. Using an electric hand-held mixer at low to medium speed, beat ingredients together until smooth.
3. Pour the mixture into the prepared crockpot.
4. Cover and cook on Low 6 to 8 hours, or cook on High 3 to 4 hours.
5. Spoon into cups and top with whipped topping.