It’s National Mustard Day Posted by Tammy Aug 012009 If you're new here, you may want to subscribe to the Chicago Bites RSS feed and follow Chicago Bites on either Twitter or Facebook. Thanks for visiting!Some people really know how to enjoy mustard! Hope you enjoyed some mustard today. Learn more about mustard celebrations from the lovely people in Mt. Horeb, Wisconsin. Related posts: Happy National Cheesecake Day! Comments Closed Sorry, the comment form is closed at this time.