Greetings Jay J. (I'm not going to say Moderator because Steve has broken me of that)
Anyway, What brand of gingerbread are you using?
I would think if it was high density foam, you could pre drill pilot holes and then with a larger bit drill a counter sink the size the head of the screw. Use only aluminum or stainless steel screws.
This should hold and allow for movement.
I'm glad to hear you are doing well.
Thanks for the update.
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