Caldillo Zapatero (Quick Soup for Lent)
Origin
City of Oaxaca, Oaxaca, Mexico. Documented by Diana Kennedy in Oaxaca al Gusto, p. 57.
Description
A lean, fast Lenten soup from the city of Oaxaca, built around nopales (pads of Opuntia cactus) in a light tomato broth finished with beaten eggs. The name zapatero — shoemaker — likely nods to its humble, workaday character rather than any elaborate technique. Dried shrimps, ground to a powder, are an optional but traditional addition that deepens the broth without overwhelming it. Two additions of epazote (Dysphania ambrosioides) — one early, one at the finish — give the soup a layered herbal backbone.
The Thread
Flavour Context
The broth is spare but not thin — the tomato gives quiet acidity, the ground dried shrimp (where used) adds a low, saline depth that reads more as mineral backbone than any obvious seafood note. Nopales bring their characteristic faint tartness and a slippery body that thickens each spoonful slightly without muddying the broth. The two-stage epazote addition produces a soup that smells green and faintly medicinal at the table, the late handful keeping the herb's edge alive against the heat.