INGREDIENTS
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8 ounces (2 sticks) cool unsalted butter, cut into pieces
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1 cup packed light brown sugar
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1/2 cup granulated sugar
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1 teaspoon pure vanilla extract
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2 eggs
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2 1/4 cups all-purpose flour
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1 teaspoon baking soda
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1 teaspoon salt
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1 cup chocolate chips
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2 cups half-and-half
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2 cups heavy cream
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1/2 vanilla bean, split lengthwise
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9 egg yolks
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3/4 cup sugar