Simple Rhubarb Mustard

There are may different ways to make rhubarb mustard, this one is quite simple and we really enjoyed it with seitan, asparagus and baked potatoes.

Simple rhubarb mustard

Yield: 1 & 1/2 – 2 cups


  • 1 cup sugar
  • 1 cup water
  • 4 cups rhubarb
  • 1 jar mild grainy mustard (335 g)

Simple rhubarb mustard


  1. Clean the rhubarb. Make sure to discard the leaves. Slice the rhubarb in 1 inch chunks.
  2. In a medium sauce pan, bring the water and sugar to a boil, thus making a simple syrup.
  3. Add the rhubarb and cook until the rhubarb has become very soft.
  4. Cook a bit longer to reduce the amount of liquid to about half, thus making thus intensifying the rhubarb flavor.
  5. Add the jar of mustard to the cooking rhubarb and mix well.
  6. Cook the rhubarb mustard mixture for about 10 minutes.
  7. “Can” or “jar” the rhubarb mustard as you would preserves.


Chose a mild grainy mustard that you normally enjoy.

2 responses to “Simple Rhubarb Mustard”

  1. void says:

    Mh, sounds good!
    That seitan looks good too. Did you make that yourself?

  2. Chris says:

    Hi Void, Thank you for your comment.The mustard is very tasty indeed.
    And, yes..I made the seitan myself.. We make it from scratch, from a bag of flour. The old fashioned, original way, washing the starch out of the flour, then slowly cooking the gluten in a flavored broth for 2-3 hours.
    For the “corned beef” flavor, we made a herb mixture and rolled the seitan in it and mixed it into the gluten itself as well as in the broth. It was a very nice diner. I hope you try making the mustard while rhubarb is still in season. It’s really a nice condiment and quite useful for other recipes as well.

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