Organic Wholegrain Mustard with HoneyAn organic mustard with a blend of warming spice and gentle sweetness. Matured in barrels for a fuller flavour, our organic wholegrain mustard is made with yellow mustard seeds, spicy brown mustard seeds, and a drizzle of honey. Its delicious in a burger or in a sandwich with rare roast beef. Each time you buy a Waitrose & Partners Duchy Organic product, sales from the brand provide a donation to The Prince of Wales's Charitable Fund. Since 2009, you have helped us raise over £30 million for good causes, supporting a wide range of projects and communities.