In 2-quart saucepan, mix 1/2 cup sugar, the cornstarch and salt. Stir in milk and blended apricot mixture. (Mixture will look curdled.) Cook over medium heat, stirring constantly, until mixture heats to boiling and is slightly thickened. Boil 2 minutes, stirring constantly. Remove from heat. Blend a small amount of hot mixture into egg yolks. Return egg yolk mixture to saucepan; mix well. Over medium heat, heat to boiling, stirring constantly. Boil 2 minutes, stirring constantly.