1
Place the shredded cheddar, flour, garlic powder, cornstarch, Parmesan cheese, and salt in a food processor. Pulse for about 30 seconds until they are well combined.
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2
Add the cold butter cubes and pulse for another 20 seconds until the mixture looks like wet sand.
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3
Transfer the dough onto a lightly floured surface, shape it into a square, and wrap it in plastic.
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