My Mom always made her own taco shells because my Dad hated the premade ones. They were too hard and usually shattered at the first bite. She put the tortilla into hot oil for a couple of seconds and then used tongs to fold it basically in half, letting one side fry until crispy and then flipping it over and frying the other side.
The next time you're having taco night try making these genius hard taco shells yourself. Simply spray your tortillas with cooking oil then drape them over your oven rack and cook at a temperature of 375 degrees Fahrenheit until they're a crispy golden brown.
Spray taco shell molds and place on baking sheet. If you do not have molds, no worries!! You can use a oven safe dish. I like to use a medium size Pyrex dish. Put it upside down and lay tortilla over.