INGREDIENTS
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3 cups all purpose flour
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1/3 cup (packed) golden brown sugar
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1 tablespoon plus 1teaspoon baking powder
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1 1/2 teaspoons baking soda
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3/4 teaspoon coarse kosher salt
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11 tablespoons (1 stick plus 3 tablespoons) chilled unsalted butter, cut into 1/2-inch cubes
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1 cup plus 3 tablespoons old-fashioned oats
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1 cup fresh or frozen blueberries (about 5 1/2 ounces)
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1 3/4 cups chilled half and half
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1 teaspoon vanilla extract
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5 teaspoons raw sugar