"“It's a wonder these made it to the school bake sale, the way we loved eating them.”..."
INGREDIENTS
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3 cups all-purpose flour
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1 1/2 teaspoons baking powder
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1/8 teaspoon salt
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1 cup (2 sticks) butter, softened
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1 cup granulated sugar
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3/4 cup firmly packed light brown sugar
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3 large eggs
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1 teaspoon vanilla extract
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12 ounces semisweet chocolate chips
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11 1/2 ounces milk chocolate chips
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11 ounces white chocolate chips
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1 cup chopped walnuts