Homemade Rhubarb Jam (Easy, Rustic & Perfectly Spiced)
This easy homemade rhubarb jam is tangy, warmly spiced with cinnamon, and ready in under an hour. A rustic rhubarb preserve perfect for spreading, gifting, or canning.
The Tangy Little Jar That Makes Everyone Ask for the Recipe
There is something quietly magical about turning a pile of tart, knobby rhubarb stalks into a glossy, jewel-toned jar of homemade jam. If you have never made jam before, rhubarb is honestly one of the best places to start. It breaks down quickly, plays beautifully with warm spices like cinnamon, and fills your kitchen with a fragrance that is equal parts tart and sweet and cozy.
This rustic rhubarb jam recipe is the kind of thing Pam Corbin, the beloved British preserving authority, would approve of. It is unfussy, honest, and deeply satisfying. No fancy gadgets required. Just good rhubarb, sugar, a hit of cinnamon, and a little patience.
Getting great jam starts with a few good tools and quality ingredients. A heavy-bottomed pot is non-negotiable since thin pans scorch easily, and fresh rhubarb with firm, bright stalks will always outperform limp, past-its-prime produce.
Choosing Your Rhubarb (It Matters More Than You Think)
Not all rhubarb is created equal, and the variety you choose will actually affect the color of your finished jam. Deep red hothouse rhubarb produces that gorgeous blush-pink preserve you see in photos. Field-grown green rhubarb, which tends to have a more complex, tarter flavor, will give you a golden or brownish jam that tastes incredible but looks more humble.
Both are absolutely delicious. If color matters to you, look for rhubarb with the deepest red stalks you can find, or stir in a handful of raspberries during cooking for a naturally vibrant raspberry rhubarb jam that is equally stunning.
Chef's Tip: Never use rhubarb leaves. They contain oxalic acid and are toxic. Always trim them off and discard them before you begin.
The Role of Cinnamon in This Jam
Cinnamon might seem like an unexpected addition to a fruit preserve, but it is the secret that elevates this from a simple rhubarb jam to something genuinely special. Just half a teaspoon adds a subtle warmth that rounds out the sharpness of the rhubarb without ever tasting like a spiced cider.
This cinnamon rhubarb jam sits beautifully on:
- Thick slices of sourdough toast with salted butter
- Warm scones or biscuits at brunch
- A cheese board alongside aged cheddar or brie
- Stirred into plain yogurt for a quick breakfast
- Spooned over vanilla ice cream as an effortless dessert
For an even deeper flavored variation, try making a cinnamon rhubarb butter by cooking the jam longer without pectin until it reduces into a thick, velvety spread. It is incredible.
Do You Need Pectin?
Short answer: no, but it helps. Rhubarb contains some natural pectin, and with enough sugar and cooking time you will get a good set on your own. Adding a pouch of liquid pectin simply speeds things up and gives you a more reliable, firmer result, which is especially useful if this is your first time making jam.
If you prefer a looser, more rustic rhubarb preserve, skip the pectin entirely and cook the jam a few extra minutes until it passes the cold plate test.
Ready to fill your pantry with something genuinely wonderful? Here is the full easy rhubarb jam tutorial, step by step:
Homemade Rhubarb Jam (Easy, Rustic & Perfectly Spiced)
This easy homemade rhubarb jam is tangy, warmly spiced with cinnamon, and ready in under an hour. A rustic rhubarb preserve perfect for spreading, gifting, or canning.
Ingredients
- 2 lb rhubarb stalks, trimmed and cut into 0.5-inch pieces, leaves discarded
- 2 cups granulated sugar
- 2 tbsp fresh lemon juice, from about 1 large lemon
- 1 tsp lemon zest, finely grated
- 1/2 tsp ground cinnamon, or more to taste
- 1/2 tsp vanilla extract, pure, not imitation
- 3 oz liquid pectin, one standard pouch; optional but helps with a firmer set
Instruction
Wash and sterilize your jam jars and lids by running them through a hot dishwasher cycle or boiling them in a large pot of water for 10 minutes. Keep warm until ready to fill.
Trim the rhubarb stalks, discard all leaves (they are toxic), and chop into roughly 0.5-inch pieces. You should have about 6 cups of chopped rhubarb.
Combine the chopped rhubarb, granulated sugar, lemon juice, and lemon zest in a large heavy-bottomed saucepan or Dutch oven. Stir well to coat the rhubarb in sugar.
Let the rhubarb and sugar mixture sit for 10 minutes, stirring occasionally, until the sugar begins to draw out the rhubarb juices.
Place the saucepan over medium-high heat and bring to a full rolling boil, stirring frequently to prevent scorching on the bottom.
Once boiling, reduce the heat to medium and cook the jam, stirring often, for 25 to 30 minutes. The rhubarb will break down completely and the mixture will thicken noticeably.
If using liquid pectin, stir it in during the last 5 minutes of cooking and return the mixture to a full boil for 1 minute, then remove from heat.
Stir in the ground cinnamon and vanilla extract. Taste and adjust spice level if desired.
To test the set, place a small spoonful of jam on a chilled plate and push it with your finger after 30 seconds. If it wrinkles and holds its shape, the jam is ready. If not, continue cooking for another 5 minutes and test again.
Remove from heat and skim off any foam from the surface using a spoon.
Carefully ladle the hot jam into the sterilized jars, leaving about 0.25 inch of headspace at the top. Wipe the jar rims clean with a damp cloth.
Seal the jars with lids and bands, tightening to fingertip-tight. For shelf-stable canning, process the sealed jars in a boiling water bath for 10 minutes. Remove and let cool completely on a towel-lined counter.
You will hear the satisfying pop of the lids sealing as the jars cool. Any jars that do not seal should be refrigerated and used within 3 weeks. Properly sealed jars can be stored in a cool, dark pantry for up to 12 months.
Equipment
- Large heavy-bottomed saucepan or Dutch oven (at least 6-quart)
- Wooden spoon or heat-resistant silicone spatula
- Ladle
- Canning jars with lids and bands (half-pint or pint size)
- Large stockpot with rack (for water bath canning)
- Jar lifter or tongs
- Small chilled plate (for jam set test)
- Fine mesh skimmer or spoon
- Kitchen scale (optional but recommended)
Notes
Storing, Gifting, and Making It Last
Properly water-bath processed jars of this rhubarb jam will keep in a cool, dark pantry for up to 12 months. Once opened, tuck them in the fridge and enjoy within 3 weeks.
If you skip the canning step, simply refrigerate right away for up to 4 weeks, or freeze in small containers for up to 6 months.
This jam also makes a beautiful homemade gift. Tie a square of linen over the lid with a piece of kitchen twine and a handwritten label, and you have something far more thoughtful than anything you could buy at a shop.
