Meanwhile, in 2-quart saucepan, beat egg yolks, sugar, cornstarch, orange juice and salt with wire whisk until blended. Add butter; cook 2 to 3 minutes over medium heat, stirring frequently, until boiling. Boil 3 to 5 minutes, stirring constantly, until thickened and mixture coats the back of a spoon. Immediately pour orange mixture (orange curd) through fine-mesh strainer into medium bowl. Cover with plastic wrap, pressing wrap directly onto surface of orange curd. Refrigerate about 1 hour or until completely chilled.