Cajun popcorn is a traditional dish originating from Louisiana. The dish consists of cooked crawfish tails that are coated in a thin batter, seasoned with hot sauce, then deep-fried until crisp. The batter is usually made with a combination of eggs, milk, flour, cornmeal, and cayenne pepper.

Once prepared, Cajun popcorn is typically served with dipping sauces such as mustard mayonnaise or Creole rémoulade. The dish was invented in the early 1980s when processed and frozen crawfish tails became widely available throughout the country.