Yes, you can. Though they’re completely different foods, some of the salty taste can transfer and work well to fill the gap that the unavailability of Marmite leaves in your recipe. However, since both of these have a very strong flavour, we recommend using a very small amount as you go and gradually altering it to your taste. This substitution works better when you’re using Marmite instead of Worcestershire Sauce and not the other way around, which is why it is not on this list. However, if you have no other option, you can give this a try.