INGREDIENTS
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2 cups all-purpose flour
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1/4 cup cocoa powder
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3 tablespoons malted milk powder
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1 teaspoon salt
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1 teaspoon baking soda
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1 cup butter
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3/4 cups granulated sugar
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3/4 cups light brown sugar
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2 eggs
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1/4 cup sour cream or creme fraiche
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6 ounces white chocolate chips
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6 ounces semisweet chocolate chunks