Is it March 21 or October 4? How is it different from National Taco Day?

National Crunchy Taco Day is March 21 and is specifically about the hard, crunchy shell. National Taco Day is the larger all-tacos day, historically October 4 and moved in 2024 to the first Tuesday in October. National Soft Taco Day, the soft-shell counterpart, falls on October 3. Taco Tuesday is different again: it is a weekly thing every Tuesday, not a fixed calendar date.

Who invented the crunchy taco?

No single person did, but the record predates the fast-food chains. Juvencio Maldonado held the first U.S. patent for a fried-taco-shell form in 1950, and the dish descends from Mexican tacos dorados that cooks were making long before that.

Did Taco Bell invent the hard-shell taco?

No. Glen Bell scaled and franchised it, but historians and the patent record show Mexican and Mexican-American cooks created the pre-formed shell first.

What makes a crunchy taco crunchy?

It is a corn tortilla fried until its starch sets into a rigid, crisp shell that snaps instead of folding, then bent into the familiar U-shape.

National Crunchy Taco Day

Next celebratedSunday, March 21, 2027

An annual U.S. observance on March 21 celebrating the crunchy taco, a U-shaped fried corn tortilla shell filled with seasoned meat and toppings.

See how to celebrate

Countdown to the day

--DAYS

--HRS

--MIN

--SEC

Last updated March 21, 2026 · by the Holiday Calendar TeamHave an update or spot an error?

YEARLY DATEMarch 21

OBSERVED INUnited States

CATEGORYFood

SUBCATEGORYGlobal Cuisines

ORIGIN

Community Origin

FOUNDING ENTITY

Not documented

FIRST OBSERVED

Not documented

HOW THE HOLIDAY CAME TO BE

A date on the calendar with no documented author.

No primary or independent source documents who created National Crunchy Taco Day, when it began, or why March 21 was chosen. The date appears only on holiday-aggregator listings, and the popular claim that it marks the first Taco Bell opening is not reliably documented.

+ Know the story? Submit a founder Help us complete this holiday

INTRO

The hard shell a chain didn't invent

Most Americans picture a fast-food chain when they picture a crunchy taco. The record says otherwise. The first U.S. patent for a fried-taco-shell form went to Juvencio Maldonado, a Mexican immigrant restaurateur in New York, granted in 1950, more than a decade before the first Taco Bell.

That gap is the whole story of this day. The crisp, U-shaped shell people credit to a drive-thru was being fried, bent, and sold inside the Mexican and Mexican-American community long before any chain scaled it. Food historian Jeffrey Pilcher puts it bluntly: Glen Bell "claims to have invented the taco shell in the early 1950s. Wrong!"

National Crunchy Taco Day celebrates that shell. The fun part is what it quietly corrects: the cooks who made it first were not in a corporate kitchen.

ORIGINS

Crunchy Taco Day history

INTRODUCTION

The crunchy taco did not start in a test kitchen. It descends from tacos dorados, a Mexican preparation in which a cook fries a tortilla and bends it into a U-shape. Per Smithsonian Magazine, 1940s Mexican cookbooks already described the method, a decade before any fast-food chain claimed it.

By then the dish had deep roots in the United States. Fried, hard-shell-style tacos turn up in Mexican-American communities of the Southwest from the early 1890s.

CHAPTER 01

A patent in a New York kitchen

In 1938, an Oaxacan immigrant named Juvencio Maldonado opened a Manhattan Mexican restaurant called Xochitl. To fry several shells at once, he designed a metal frying form, and the U.S. government granted him a patent for it in 1950. His device never spread far beyond his own kitchen, but it set the record straight on who got there first.

CHAPTER 02

Ten cents at the Mitla Cafe

The chain story really begins across a street in San Bernardino. Mitla Cafe opened in 1937, founded by Lucia Rodriguez, and sold tacos dorados for a dime. Glen Bell ran a hamburger stand opposite it in the 1950s and watched the lines form. By multiple accounts, Mitla's cooks showed him how the tacos were made.

CHAPTER 03

How the historians weigh it

What Bell did next was scale, not invent. He opened Taco Tia, then founded Taco Bell in Downey, California, in 1962, a roughly 400-square-foot stand selling tacos and burritos. In a peer-reviewed study, Pilcher argued the Mexican-American taco, shell included, was invented within the community, not by the industry.

CHAPTER 04

The day itself

The dish has a long paper trail. The holiday does not. No source documents who created National Crunchy Taco Day, when it started, or why it sits on March 21. The date circulates on holiday-aggregator listings, the way most minor food observances do, and the page you are reading rests on the dish's verified history rather than the day's.

TIMELINE

Timeline

Fried tacos in the Southwest

Hard-shell-style tacos are documented in Mexican-American communities across the U.S. Southwest.

Mitla Cafe opens

Lucia Rodriguez opens Mitla Cafe in San Bernardino, selling tacos dorados for ten cents.

Maldonado files his patent

Juvencio Maldonado files a patent for a metal form that fries several taco shells at once.

First U.S. shell patent granted

US Patent 2,506,305 is granted to Maldonado, the first U.S. fried-taco-shell-form patent.

First Taco Bell opens

Glen Bell opens the first Taco Bell in Downey, California, a roughly 400-square-foot walk-up stand.

A historian debunks the myth

Jeffrey Pilcher publishes a Gastronomica study refuting the corporate invention story.

AT A GLANCE

The hard-shell taco at a glance

What it is: A U-shaped fried corn tortilla filled with seasoned meat and toppings
Made from: Nixtamalized corn masa, fried until rigid and crisp
Antecedent: Taco dorado, a Mexican fried-taco preparation
First U.S. patent: Maldonado's frying form, granted 1950
Also called: Hard-shell taco, crispy taco
Scaled by: Taco Bell, from 1962 onward

GOOD TO KNOW

Surprising facts about National Crunchy Taco Day

"Taco" started as a mining term

Pilcher traces the word to 18th-century Mexican silver mining, where a taco was the little paper-wrapped gunpowder charge used to blast out ore. The earliest documented food use is "tacos de minero," miner's tacos. (Smithsonian)

The word reached U.S. papers by 1905

"Taco" appears in American newspapers around 1905, tracking Mexican migration north and well predating any fast-food chain. (Smithsonian)

The shell's inventor got one New York Times mention

Maldonado's frying form earned a passing New York Times notice but never caught on commercially beyond his Manhattan restaurant, Xochitl. (MEL Magazine)

Nobody can show why it's March 21

No primary source ties March 21 to any taco milestone. The often-repeated link to the first Taco Bell fails, since that opening is documented as July 6, 1962, not March. (PBS SoCal)

The October taco day is a marketing date

The separate National Taco Day was popularized by the chain Del Taco around 2009, then moved in 2024 to the first Tuesday in October to align with Taco Tuesday. (Taco Bell newsroom)

MYTH VS FACT

Common Misconceptions

The myth

Glen Bell, or Taco Bell, invented the hard-shell taco.

The truth

The pre-formed shell predates him. Maldonado patented a frying form in 1950, 1940s Mexican cookbooks already described the U-shape, and Mitla Cafe was selling tacos dorados in 1937.

WHY THIS DAY MATTERS

Why We Love National Crunchy Taco Day

CREDIT

A chain scaled the crunchy taco. It did not invent it.

The shell most diners credit to a chain was created by Mexican and Mexican-American cooks first. Marking the day is a chance to name them, from Maldonado's patent to the Mitla Cafe family whose recipe a non-Mexican chain commercialized.

SCIENCE

It celebrates real food chemistry

A corn tortilla is made from nixtamalized masa, whose starch is already partly gelatinized. Frying drives off the moisture fast, setting that starch into a rigid matrix, which is why a hard shell snaps instead of folding.

ECONOMY

It tracks a global food empire

The crunchy taco built one of the largest fast-food chains on earth. Taco Bell ran about 8,757 restaurants worldwide in 2024 and reported roughly $17.2 billion in global system sales that year.

GET INVOLVED

How to Celebrate National Crunchy Taco Day

Fry your own shells from scratch

Heat oil, slide in a corn tortilla, and fold it into a U as it crisps. You will be making the same dish Maldonado patented a frying form for in 1950.

EAT

Eat at a family taqueria, not a chain

Order tacos dorados where they were perfected, at a Mexican-owned spot. It is the most direct way to taste the crunchy taco's actual lineage.

READ

Read up on the real history

Spend a few minutes with a food historian's account, such as the LA Taco interview with Jeffrey Pilcher. It reframes a dish you thought you knew.

THROW

Throw a build-your-own taco bar

Set out warm shells, two or three seasoned fillings, and a row of salsas. Let everyone assemble their own crunchy taco to taste.

Share the Mitla Cafe story

Tell a friend how a 1937 San Bernardino diner's ten-cent tacos shaped American fast food. It is a piece of culinary history most people have never heard.

Test your knowledge