Hi there, Mary! Pie crumbs are the flour, salt, shortening, and butter from your standard pie crust recipe. Having these ingredients pre-mixed and on hand in the freezer makes getting pie dough ready a bit easier as you just have to measure out the amount of crumbs you need and add the appropriate amount of liquid. The number of crusts you get depends on how much of the crumbs you prepare based on the recipe you follow. We hope this helps to clarify! 

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