There are a number of different items you can get for a snack credit but I'm not sure of the details.
GCC is one of our family's favourite spots and we often start and end our vacations there! They're too pricey for a snack credit but hands down our favourites are the caramel and peanut covered apples. Ah-ma-zing!!! We ask the cast member to cut them up and they're a delicious treat and oh so filling!