INGREDIENTS
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2 1/4 cups self-rising soft-wheat flour (such as White Lily)
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1 cup cold butter, cut up
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8 cooked bacon slices, chopped
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3/4 cup sour cream
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2 3/4 pounds assorted large tomatoes, divided
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2 teaspoons kosher salt, divided
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1 1/2 cups (6 oz.) freshly shredded extra-sharp Cheddar cheese
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1/2 cup freshly shredded Parmigiano-Reggiano cheese
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1/2 cup mayonnaise
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1 large egg, lightly beaten
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2 tablespoons fresh dill sprigs
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1 tablespoon chopped fresh chives
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1 tablespoon chopped fresh flat-leaf parsley
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1 tablespoon apple cider vinegar
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1 green onion, thinly sliced
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2 teaspoons sugar
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1/4 teaspoon freshly ground black pepper
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1 1/2 tablespoons plain yellow cornmeal