Grandpa Spencer's

Grandpa Spencer’s Mustard is a family-owned gourmet mustard business based in St. Charles, Missouri, built around a recipe created by Adora Spencer in 1935. The family began selling the original mustard in 2010 and later added two more flavors, sharing their traditional recipes with customers at markets and online.

Its range includes Original Sweet & Spicy, a creamy, honey-mustard-style condiment; Hot & Spicy, a sweet mustard with a jalapeño- or cayenne-like kick; and Horseradish, a sweet-based mustard with mild-to-medium heat and the brand’s best-selling flavor. Each is available in a 9-ounce jar, and a gift pack includes one jar of each flavor in a windowed kraft carrier. The mustards are gluten-free and can be enjoyed with sandwiches, burgers, pretzels, grilled or smoked foods, or used in recipes such as potato salad, deviled eggs, chili, and barbecue sauce.

Customers can order online, find the products through retail partners, or meet the family at local events, where tastings are offered