National Mustard Day

National Mustard Day is observed each year on the first Saturday in August, making it August  2, 2025, a flavorful and festive celebration honoring one of the world’s most beloved condiments.

History of National Mustard Day

National Mustard Day was created in 1991 by the National Mustard Museum in Middleton, Wisconsin (originally Mount Horeb), turning a simple homage to mustard into a full-blown annual street festival. It began as a small local event in front of the museum and has grown dramatically over the decades, now closing off streets in downtown Middleton for live music, games, sampling, and mustard-themed fun. ¹

Mustard itself boasts a history stretching back thousands of years. The condiment was known to ancient Egyptians and Romans, who combined mustard seeds with grape must to create “burning must.” Monks in medieval France later turned it into a commercial product, and Dijon became famous by the 13th‑century for producing refined mustard varieties.

Why is National Mustard Day important?

This day is more than just a quirky food holiday—it’s a celebration of culinary culture and heritage. Mustard is a versatile ingredient that plays a role in countless cuisines globally, from classic Dijon and English styles to spicy and sweet varieties. Honoring it highlights how a simple condiment can connect traditions, flavors, and memories across nations and generations.

Beyond flavor, mustard’s longevity and accessibility remind us of food’s ability to bring communities together. The festival hosted by the Mustard Museum is free and community‑oriented, emphasizing shared enjoyment, curiosity, and celebration of diversity—all centered around something as humble yet ubiquitous as mustard.

• mustard has shaped culinary traditions and regional flavors
• its global variety shows how a simple seed can diversify cuisine
• celebrating it honors both tradition and everyday enjoyment
• the museum’s event brings people together with flavors and fun
• mustard connects food lovers from different generations

How to Celebrate National Mustard Day

If you can, visiting the National Mustard Museum in Middleton, Wisconsin on August 2, 2025 is a unique way to mark the day—expect mustard tastings, live music, family activities, and more. Even if you’re far away, you can still join in the mustard fun from home.

At home, why not host your own mustard tasting? Gather a selection—American yellow, Dijon, spicy brown, sweet Bavarian—and sample them with pretzels, sandwiches, sausages, or cheeses. It’s a relaxed, sensory way to explore flavor. You could even try making homemade mustard: soak seeds in vinegar, wine, or even beer, then grind and season to your taste.

Group-friendly ideas include a mustard-themed potluck or pairing evening—invite friends to bring dishes featuring mustard, from vinaigrettes to glazes. Or simply try a new mustard-based recipe each week and rate your favorites. Share your mustard creations online with friends to spread the savory spirit.

• gather a few unique mustard jars and taste them with simple snacks
• try making your own mustard using seeds and flavored liquids
• cook recipes that highlight mustard—salad dressings, glazes, dips
• organize a small mustard-themed dinner or potluck with friends
• share your favorite mustard and pairings on social media or with friends

National Mustard Day Dates Table

1. https://mustardmuseum.org/mustard-day/[↩]