Includes 1 (320 oz) Shelf-Stable box of Quaker Harina Preparanda Para Tortillas White Flour Tortilla Mix. Make Mexican meals authentic with Quaker tortilla mix. Your family will notice the delicious difference when you create corn tortillas with all their favorite dishes. Plus, add festive flavor to new recipes. From our home to yours, Quaker brings genuine goodness with dried Masa Harina de Maiz.