Aztec dancers perform as the sun sets in the Woodlands, Tex. (Eric S. Swist/AP)

In the United States, though, the day has become a celebration of Mexican heritage and pride — and a day for non-Mexicans to partake in the happy tradition of imbing margaritas. The holiday has been celebrated in the U.S. since the Civil War, when Latinos in California used it as a commeration to celebrate Mexican and Central and South American immigrants. According to the UCLA Center for the Study of Latino Health and Culture, the first American celebration took place on May 5, 1863.

As a proud Southern Californian, I think the holiday is, well, awesome. It’s an excuse to get together, dance wildly, wear beautiful flowing dresses and eat good guacamole. (If you’re in Washington, here’s what to do on Cinco de Mayo.)

The Post has a robust selection of recipes for any Cinco de Mayo party, along with some sangria recipes, but in honor of the day, I’ll spill my brother’s secret margarita recipe:

It must be served on the rocks, in a rock glass. Salt optional.

1/2 oz. of fresh-squeezed lime juice

2 oz. Tequila Corralejo Blaco Reposado

1 oz. hibiscus syrup

A splash of orange juice

That’s it! Happy Cinco de Mayo!