In Sonora, a Northern Mexican region where wheat has been cultivated for more than 400 years, tortillas are typically made of flour rather than corn. But unlike the generally lackluster store-bought wrappers most Americans are familiar with, handmade flour tortillas are pliable, chewy, fragrant, and dotted with mahogany blisters. While this recipe, adapted from Teo Diaz and Julia Guerrero of Sonoratown taqueria in downtown Los Angeles, isn’t complicated, it does require allowing some time…