Meanwhile, in medium bowl, stir flour, baking soda and 1/4 teaspoon salt; set aside. In large bowl, beat egg product with electric mixer on medium speed 30 seconds. Gradually add sugars, about 1/4 cup at a time, beating well after each addition. Beat 2 minutes longer. Beat in oil and 2 teaspoons vanilla. Beat about one-third of the flour mixture and about one-half of the chocolate mixture at a time alternately into sugar mixture on low speed until blended.