Heat about 1 inch of oil in a heavy skillet over medium to medium-high heat to 365 degrees F (180 degrees C).
Use tongs to place one tortilla at a time into the oil. It should start to sizzle right away. Cook for about 15 seconds, then flip over and fold the shell in half, holding in place with the tongs until crispy, about 15 seconds. You may need a little practice at first. Drain on paper towels, and sprinkle with salt while still hot. Use for tacos right away, or they may become chewy. Leftovers may be heated in the oven for crisping.
