INGREDIENTS
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2 cups minus 2 tablespoons (8 1/2 ounces) cake flour
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1 2/3 cups (8 1/2 ounces) bread flour
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1 1/4 teaspoons baking soda
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1 1/2 teaspoons baking powder
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1 1/2 teaspoons coarse salt (I used kosher salt)
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2 1/2 sticks (1 1/4 cups) unsalted butter
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1 1/4 cups (10 ounces) light brown sugar
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1 cup plus 2 tablespoons (8 ounces) granulated sugar
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2 large eggs
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2 teaspoons natural vanilla extract
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8 ounces semi-sweet chocolate, chopped into chunks
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4 ounces unsweetened chocolate, grated
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8 ounces semi-sweet chocolate chips
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sea salt