Sopa Aguada de Fideo Capitalina

This is a Ciudad de Mexico dish. Not a generic Mexican one. Sopa aguada de fideo is the first plate of the comida corrida, the three-peso lunch set that has fed the working capital for a century, and you will not walk into a fonda in Roma, Doctores, or San Rafael at one in the afternoon without finding a steaming pot of it on the line.

The technique is short and it is non-negotiable. You toast the fideo in lard until it turns amber. You char the romas and the garlic on a comal until the skins blister. You fry the blended salsa into the toasted pasta until the fat separates. Then the caldo goes in and the epazote does its quiet work. Skip the toasting and you have pale, starchy pasta water. Skip the charring and the salsa tastes raw. These two steps are the recipe. Everything else is just simmering.

My mother made this once a week, every week, for as long as I lived at home in Colonia Roma. It was the soup of a Tuesday when there was no money for meat and no time for a slow stew. A package of fideo, four romas, half a chicken carcass for broth, a sprig of epazote from the pot on the window. She finished it with crema and queso fresco and slices of aguacate when there was aguacate, and with nothing but a squeeze of lime when there was not. La cocina no es decoracion, es trabajo. This is that soup. Cada estado, su propia cocina, and this one belongs to the capital.