INGREDIENTS
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2 1/3 tablespoons active dry yeast (a little less than the contents of two 1/4 oz packets)
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1/4 cup lukewarm water
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1 3/4 cup buttermilk
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4 cups bread flour, plus more as needed
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1/4 cup sugar
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1 2/3 tablespoon kosher salt
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5 tablespoons unsalted butter, at room temperature
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Nonstick vegetable spray
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Cornmeal as needed (or yellow grits, in a pinch)