The following notice appears on the Waitrose website:
Heston Mushroom and Gin Sauce 200 g
Brand: Waitrose & Partners
Use-by dates affected: 14 and 17 Feb
This product is being recalled as some pots have been incorrectly packed with Heston Bone Marrow Sauce, which contains an undeclared allergen of mustard.
Anyone with an allergy to mustard must not consume, and immediately return to your nearest branch of Waitrose & Partners for a full refund.
Freephone: Customer Care 0800 188 881
We apologise that it has been necessary to recall this product and for the inconvenience caused.