The "no chorizo" rule, and why Spaniards take it personally
This is the section every "what is paella" article has to write, and most of them get it half right.
Traditional paella does not contain chorizo. Not in valenciana. Not in marisco. Not in mixta as it's made in Spain. Adding chorizo turns the dish into something else, fine, possibly delicious, but not paella in the traditional Spanish sense. The smoky, paprika-heavy, fatty profile of chorizo dominates the rice. Saffron, which is the soul of paella, gets buried.
The Internet had its biggest paella moment in 2016 when a celebrity chef posted a recipe with chorizo, and Spanish Twitter erupted. The reaction wasn't just food snobbery. It was about a regional dish whose identity gets diluted every time it crosses a border.
Why does this matter? Two reasons.
First, paella is a regional identity dish. Valencia takes paella seriously the way Naples takes pizza seriously, or Texas takes barbecue seriously. The recipe is part of how the region understands itself. Adding chorizo to paella is like adding pineapple to a Neapolitan pizza, there's a version of the world where it's fine, but it's not the version Naples is in.
Second, chorizo and saffron don't actually work together. This is the unromantic answer. Chorizo's pimentón de la Vera (smoked paprika) is the same flavor profile as the paprika already in the paella. Doubling it crowds out the saffron, which is more delicate and more expensive. The result is a smoky rice that tastes like its cheapest ingredient, not its rarest.
We don't put chorizo in our paella. We do put it in our charcuterie boards, in our chorizo a la sidra, in our morning eggs at home. Chorizo is one of our favorite ingredients on earth. It just isn't a paella ingredient.
If you've had paella with chorizo somewhere and loved it, that's fine, that caterer has decided the customer-facing simplicity matters more than the regional definition, and there's a defensible position there. We've made the other call.