Fudge rewards patience more than skill, and the hardest part is leaving it alone while it cools. National Fudge Day is the day to make a pan, cut it into small squares, and give most of them away.
No founder or establishing record for June 16 could be located. The Federal Register carries no document under the day's name, and the name appears in no scanned volume of Chase's Calendar of Events across an index that reaches editions published from 1951 to 2007.
The sweet at the center of National Fudge Day has become a laboratory material. In a paper posted in May 2026, a team of researchers at the University of Edinburgh cooked batch after batch of it to different final temperatures, then compressed each one in a testing machine to see how it failed.
They found two thresholds, and the two sit close together. Their samples turned from fluid to solid at 110 C, then from a solid that squashes to one that fractures at 118 C. In those batches that is the whole band between a sauce and a slab that shatters.
The candy's own history is in worse shape than its physics. The document usually cited for it is a letter written from memory, long after the events it describes, by a student who never claimed to have invented it.
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National Fudge Day ran on June 16. Here’s who celebrated with offers this year.
The story runs that fudge was invented at Vassar College in 1888. The source is a letter from Emelyn Battersby Hartridge, class of 1892, to her old history professor Lucy Maynard Salmon. Salmon's papers at Vassar hold six letters and a card filed under Lyn Hartridge, spanning 1893 to 1924.
Hartridge claimed no invention. She wrote that fudge "was first made in Baltimore by a cousin of a school mate of mine", and sold there in a grocery store in 1886 at 40 cents a pound.
Vassar's own chronicle names that schoolmate: Nannie Hagner. What Hartridge kept for herself was smaller, and she hedged it herself: 30 pounds made for the Senior Auction, "its real introduction to the college, I think."
The Oxford English Dictionary revised its entry for fudge in June 2025 and did not find Vassar at the front of the queue. Its first unambiguous evidence for the women's college fudge craze is an Iowa newspaper of 1891. The report names a Miss Alice Doe, who had been attending Wellesley College, making fudges with a group of friends.
A cookbook printed in Oshkosh, Wisconsin carried a recipe for fudges the same year. Where the name itself came from, the dictionary will not say. Its executive editor, Peter Gilliver, wrote that on that question "there I am, to be honest, stumped", and that the answer "remains a mystery".
On Mackinac Island, Michigan, the making became the attraction. Rome Murdick was the first there to work fudge on marble slabs, folding the cooling mass back with a long-handled trowel while visitors watched.
Then the smell became the advertising. Through two world wars and the Depression, Rome Murdick and his son Gould turned the kitchen cooling fans on the street, and Gould poured vanilla into a bubbling cauldron purely for the aroma it pushed outside. By the 1960s the island's visitors were being called fudgies.
TIMELINE
WHY THIS DAY MATTERS
A tray of fudge and a paste of calcite powder fail in the same order.
The Edinburgh preprint is not really about dessert. It uses fudge to study when a densely packed suspension stops deforming and starts breaking, and it opens on the steel of the Titanic fracturing in the unusually cold North Atlantic of April 1912, alongside the same transition in the Earth's crust. The team then reproduced the sequence in a paste of calcite powder.
Fudge traveled through American women's colleges as something students made themselves, after hours. Vassar's own alumnae magazine records them making it in the middle of the night, dangerously diverting the gas from their lamps for the task. The equipment was a pan and whatever heat a dormitory could be made to give up.
The island is careful about its own claim. Its historian Phil Porter, whose account of the trade is published by Mackinac State Historic Parks, puts it plainly: "Fudge was not invented at Mackinac, but it was here that a particular style of fudge gained great popularity that spread across the nation."
BY THE NUMBERS
MYTH VS FACT
Fudge's invention is documented in an 1888 letter.
The letter is a recollection, not a record made at the time. The Oxford English Dictionary, describing the same account, notes that Hartridge was admittedly writing over thirty years after the event. Vassar's own chronicle and the researcher who reproduced the letter give different years for it, and neither of them is 1888.
A Vassar student invented fudge.
Vassar files that story among its myths. The college encyclopedia's Myths and Legends page records that its own Office of Media Relations calls it a fable while Historian Elizabeth Daniels says it is true, and then settles between them: Hartridge made the fudge, and attributed the recipe to a classmate's cousin.
Fudge was born on 14 February 1886, when a confectioner botched a batch of caramels.
Michael Quinion calls that a suspiciously precise date, more so because it was Valentine's Day, and reads the story as folk etymology invented long afterwards. The dictionary's editor is likewise unconvinced that the sweet is named after the verb meaning to cobble something together.
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Test your knowledge
No. It is an unofficial food observance: the Federal Register carries no document under the day's name, against controls that return presidential proclamations for other observances, and no legal designation turned up in the indexes checked.
COLOPHON
Treat yourself on National Nutty Fudge Day! Indulge in creamy, delicious fudge made with all your favorite nutty ingredients.
Celebrate National Peanut Butter Fudge Day with something extra special - try out our delicious recipe for the perfect peanut butter fudge!
Indulge in the rich and creamy goodness of penuche fudge on National Penuche Fudge Day - it's the perfect excuse for a sweet treat!
