Rhubarb Jam – No Pectin

A jar of jam, with rhubarb leaves

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Rhubarb Jam is a yearly springtime celebration, whether it grows in your own garden or it starts to show up at farmer’s markets and produce stores. Rhubarb is one of the very first edibles to show up in the garden after a long winter.

Jar of rhubarb jam in a garden next to a rhubarb plant

 

Don’t Eat Rhubarb Leaves

Rhubarb is a perennial garden dweller, and we look forward to its appearance each spring. But, did you know, that the rhubarb leaves, themselves, are poisonous? They contain high levels of a toxic compound called oxalic acid. So, although those leaves may look temptingly like beet tops or Swiss chard, please refrain from eating them.

A close up of a jar of jam

More About Rhubarb

Did you know Rhubarb is not really a fruit, but actually a vegetable? Like many produce items, how we use them determines whether we think of them as veggies, or as fruits. For more facts about rhubarb, check out Four Things You Didn’t Know About Rhubarb

A jar of jam in a garden

Keep Rhubarb in the Freezer To Enjoy all Year

A couple of posts ago, I made strawberry rhubarb muffins. I’ve been wanting to use rhubarb again while it’s still in season and growing like crazy. But you don’t have to wait, because rhubarb is easy to freeze. Just cut the stalks into 2-inch pieces. Spread the pieces on a parchment-lined baking sheet and freeze until firm. Then transfer them to airtight containers and freeze for up to a year. So if you have a surplus, or just want a winter treat, you can still make this rhubarb jam any time of year.

And rhubarb is perfect for more than jam! Try a refreshing Rhubarb Gin & Tonic Cocktail, or bake up some of these delicious Rhubarb Blueberry Oatmeal Bars.  And, if you’ve never tried Pickled Rhubarb you’re missing out!

A jar of jam sitting in a rhubarb patch

Ingredients: Just Sugar & Rhubarb 

This is a super simple recipe. There’s no pectin, and there’s just enough sugar to let that rhubarb’s bright tartness shine. The end result is also versatile. You can use this rhubarb jam on toast or scones, but also with pork, salmon, or with crackers and a sharp spreadable cheese for entertaining. I love it on waffles with strawberries, and you can layer it with custard and nuts for a sublime spring desert. (Recipe coming soon)

To get the prettiest colour for your jam, try to use only the pink and bright red stalks. The green stalks taste just as good, but the colour will be a little muddy.

A close up of a rhubarb plant

More Delicious Jam (and Jelly) Recipes

Once you start making your own jams & jellies, you won’t want to stop. The variety of fruits and flavours that you can put into a jar are endless. Here are just a few delicious suggestions:

A jar of jam, with rhubarb leaves

Rhubarb Jam – Rhubarb Jam Recipe

Celebrate spring with a simple, fresh rhubarb jam with only two ingredients. 
4.57 from 53 votes
Print Pin Rate
Course: Jams, Jellies, & Preserves
Cuisine: Canning & Preserving
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 64 tbsp
Calories: 21kcal

Ingredients

  • 2 1/2 pounds rhubarb stalks chopped, about 8 cups
  • 1 1/2 cups sugar

Instructions

  • Put chopped rhubarb and sugar in a glass or stainless steel bowl, stir and allow to sit until the sugar is dissolved and there is lots of juice. This can be overnight in the fridge or several hours on the countertop.
  • Put into a stainless steel pot (other pots such as cast iron, enamel, copper, or aluminum will react with the ingredients and discolour the jam) over medium high heat and bring to a boil, stirring occasionally.
  •  Reduce heat to medium-low and continue to cook, stirring occasionally, until the mixture thickens and the rhubarb has broken down, about 30 minutes. 
  • Let cool, and transfer into jars.
  • Rhubarb Jam will keep in the fridge for around three weeks. I didn't process this recipe, but it could be done on a large scale if you have a ton of rhubarb.

Notes

This recipe makes four 250ml (8 oz) If you won't be using up the jam within a month, or want to make a larger amount, process the filled jars with lids and screw banks in a boiling water bath for ten minutes. Allow to cool and ensure that each jar is sealed before storing in a cool dry place. Sealed jars can be stored for up to a year.
Rhubarb jam can also be frozen. 
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Nutrition

Serving: 2tbsp | Calories: 21kcal | Carbohydrates: 5g | Potassium: 51mg | Sugar: 4g | Vitamin A: 20IU | Vitamin C: 1.4mg | Calcium: 15mg
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55 thoughts on “Rhubarb Jam – No Pectin

    1. Hi Jenny, I always do sterilize the jars. Some people don’t, but I feel its good to be on the safe side. It’s really easy if you use the water that you’ll be using for the boiling water bath. I just put the empty jars in there, bring it to a boil and remove the jars after 10 minutes. Keep the water at a simmer until it’s ready for your filled jars. If you choose not to sterilize, make sure the jars are very clean. Happy jam making!

  1. I made rhubarb jam with crushed pineale, jello,lemon peel and lemone juice and sugar I put them in spare refrigerator and several weeks later there was mold in jars. Did they set to long in refrigerator should I have frozen it I made About 60 pint jars. I will try your recipe can I add somremlm to it. Can’t wait to try your recipe. Thank you

    1. Hi Judy, this recipe is very simple and it may work better for you. It sounds like your jars were maybe not sealed, because if they were there shouldn’t be mould. Hi hope you have better luck this time! Happy jam-making.

      1. I have used this simple recipe for many years as did my mother before me. The best way I have found is to buy enough rhubarb when it’s in season. I clean, cop into about 1 inch pieces and freeze. When I’m ready for some jam I take out an individual bag and cook, adding sugar. Easy, quick and delicious!!

      2. Hi Roz. It’s such a great recipe. And I agree with you about freezing rhubarb. Not just for jam, but all kinds of desserts, too. Cheers!

    1. Hi Loretta, Thank you for the tip. However, there is no need for artificial colours in this rhubarb jam. I simply used only the red stalks, and the colour that you see is purely natural.

  2. Just a little note. It is the dead of winter and I am going to make rhubarb torte New Years Day for our family Christmas. Just a touch of spring to warm us up. I do love rhubarb and love this jam. Happy New Year all!

    1. What a great idea, Sharon, to bring a little spring to a winter celebration. So happy that you love this jam, and a rhubarb torte sounds lovely. Happy New Year to you and your family!

  3. I made this jam yesterday. It is wonderful. Such a good rhubarb flavor. I kept mine boiling when it got thickened. I then scalded my jars and had my rings and flat in boiling water and proceeded to can mine. I did not put it through a water bath but you certainly could. It made 4 one cup jars and 1 half cup jar. I don’t have the red type of rhubarb so I added some red food coloring. Loved it!

    1. Hi Mary, regular pectin requires sugar to work properly. To be honest, I have never tried to make jam without sugar, but now I want to. I wish I could be of more help, but thank you for kick starting me in that direction.

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