After microwaving, carefully remove the glass (it may be hot), and you'll find your tortilla has transformed into a crunchy, hard taco shell, perfect for loading up with your favorite taco filling.
Do-It-Yourself Tacos / Tacos Recipe: A quick and easy taco recipe. Just throw the kidney beans, crumbled cottage cheese and your favorite veggies, drizzled with lime juice, sour cream and a green ...
and there are recipe books from the 1940s with indications on how to fry tortillas and U-shape them to make hard taco shells. What is clear is that it would have been very difficult to spread ...