https://www.cia.gov/the-world-factbook/countries/el-salvador/
https://www.whats4eats.com/central-america/el-salvador-cuisine
Read the part "Geographic Setting and Environment"
https://tryotter.com/resource/wiki/what-is-salvadoran-cuisine
Scroll to the part that says "History and Food"
You can watch:
Read the part under "Cooking"
https://togetherwomenrise.org/customsandcuisine/customs-and-cuisine-of-nicaragua/
Scroll down and read the section "Special Occasions"
Scroll down to the part that says "Food for Religious and Holiday Celebrations"
Scroll down to the heading that says "Foods of the Salvadorans"