Originally Grandma Spencer's recipe - our three flavors of mustard are a family owned recipe that are packed with delicious flavors every member of the family will enjoy.
Learn More In 1935 my Grandmother Adora Spencer created the original sweet and spicy mustard. My
grandfather loved it so much that
we decided to name it after him - but Adora should really be getting all the credit.
In 2010 we launched the Original family recipe because it's just too good to keep to
ourselves. In October of 2014 we expanded our
line with the horseradish and the hot and spicy to ensure that there was a flavor for almost
anyone!
None of our products contain gluten so we are safe for the whole family.
Save when you stock up! Two and three jar specials available.
Check out our #events section and come see us in person!
Mustard is rich in protein, fiber, vitamin C, and powerful antioxidants! Another great reason to put it on everything.
We offer free tastings at every live event! Enjoy on pretzels, burgers, or really anything!
We are offering a 15% off special on all web site orders of two or more jars. Please use the code "GSMustard2023" when you place your order.
Become a partner and help us grow! View our partners page to see where to buy our mustard in store or send us an email and let's work together!
Send us an email and let us know where you would like to sell our mustard!
Contact UsPretzels Consumed
Jars Sold in 2021
Events in 2021
Happy Customers
The mustard king of Saint Louis! Charlie grew up eating the original recipe in his mom's kitchen! Owner and Salesman, you'll meet Charlie if you go to any live event.
Devoted wife and supporter, enhancing Grandpa Spencer's Mustard with warmth, bolstering our brand and customer interactions.
Charlie and Mona's only son and somewhere between tech-guy and CTO. He works behind the scenes to make online ordering seamless.
The girl behind the camera. Ciara does our product photo shoots and sometimes will come to shows to snap some pictures. Say Mustard!