Margaret, other bakers have reported success using a food processor to mix this dough. If you choose to give this a try, take special care not to overdo it when you're cutting in the butter, thus losing the desirable, large, pea-sized pieces or when adding the sour cream, resulting in a gummy, tough crust rather than a light and flaky one. Best of luck and happy baking! Mollie@KAF

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