The word tortilla changes meaning across countries and regions. Here it refers to a dough preparation, not an egg omelet or necessarily a thin corn flatbread. Al rescoldo describes a relationship with heat from embers and ashes. Recognizing the technique helps you ask about the product without expecting it to resemble other foods sharing the name.
What the name means
Regional recipe collections include versions of bread or tortilla cooked in embers. Flour, water, fat, and salt may form the dough, with differences among recipes. Not every tortilla sold beside a grill is cooked in exactly the same way. Ask whether it was made among embers, on a surface, or using another method. That answer describes the preparation more clearly than the stall's location.
Heat and skill
The heat source affects the crust and how the interior cooks. Surface marks do not explain the entire process, and dark coloring should not automatically be considered desirable. The cook manages thickness, time, and heat. A demonstration may reveal those decisions, provided you remain in the space indicated by the person working.
Do not imitate movements beside the fire for a photograph or bring clothing, bags, or hands close to embers. Observing a technique is not equivalent to being prepared to perform it. To learn, seek an activity designed for that purpose or a complete recipe with appropriate instructions. A travel landscape is no reason to light a fire outside authorized places and conditions.
The piece at the table
When eating, notice the relationship between crust and interior and ask whether the tortilla is served plain or filled. An addition can substantially alter both the result and its composition. Flour and fat make ingredient questions particularly useful when dietary needs apply. A simple-looking preparation does not necessarily contain only what is visible.
A freshly made tortilla can accompany a roadside pause without becoming an item in a culinary collecting exercise. Buy an amount you will enjoy and ask how to store leftovers. Remembering the explained technique and where you tried it helps distinguish it from other tortillas later. That is more precise than placing every round bread encountered during the journey under one label.