Hi Elizabeth,
I am glad that you are finding the Disney Parks Moms Panel to be helpful. We love helping you to plan magical vacations!
I recently went to the
IllumiNations Sparkling Dessert Party with my 8-year-old daughter. We both had a great time! I really enjoyed the desserts and sparkling wine. She loved that there were ice cream novelties available. The location was great for viewing IllumiNations: Reflections of Earth. We were adjacent to the World Showcase Lagoon at the spot where you first walk into the World Showcase from Future World, which gave a great, straight-ahead view of the show.
The cost is $49 per adult and $29 per child. Since your child is 11 years old, he or she will be considered an adult in cost, since Disney offers child pricing to children between 3 and 9 years old. To make your reservations, you can either use the link that I provided above, or call Disney Dining at 407-WDW-DINE (407-939-3463).
I hope that this information is helpful for you, Elizabeth. Have a wonderful time planning your vacation, and please do not hesitate to ask if you have any further questions.