BTW, her "family recipes" handed down over generations had been published in newspapers ten or fifteen years previously. One hint that she swiped them was that nobody in Oklahoma in the 1800s would have been using crab in their family / tribal recipes.
Miss Marmelstein identified the chef whose recipe she, um, culinarily appropriated. Your point about the crab shows she didn’t put any more thought into that act than she did in releasing this DNA test!