Call bakery!
The best thing to do is go in and tell them what you're looking for and how many people it needs to serve. That's what I did. Their cakes are so delicious and they have the BEST buttercream frosting I've ever tasted. There is no gritty taste to it.
Sounds like a question for the bakery... ijs
If you contact them directly they should Be able to assist you.
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