INGREDIENTS
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Crisco® Original No-Stick Cooking Spray
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2 1/2 cups Martha White® Self-Rising Flour
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1/2 cup plus 1 teaspoon sugar
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1/2 cup cold butter, cut into 1/2-inch cubes
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1 large egg
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1 (8 oz.) container sour cream
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1 cup firm fresh blueberries