Rhubarb jam is a delightful way to preserve the unique, tart flavor of rhubarb. This simple recipe combines just three ingredients to create a delicious spread that pairs perfectly with toast, scones, or even as a topping for desserts. Whether you're a seasoned jam maker or a beginner, this recipe is straightforward and rewarding.
If you don't usually have rhubarb on hand, you'll need to look for it in the produce section of your supermarket. It's a stalky vegetable with a tart taste, often used in desserts and jams. Make sure to pick stalks that are firm and brightly colored. Lemon juice is another ingredient you might need to buy if you don't keep fresh lemons at home.

Ingredients for Rhubarb Jam Recipe
Rhubarb: A tart, stalky vegetable that adds a unique flavor to the jam.
Sugar: Sweetens the jam and helps with the preservation process.
Lemon juice: Adds acidity to balance the sweetness and helps in setting the jam.
Technique Tip for Rhubarb Jam
When preparing rhubarb for the jam, make sure to cut it into uniform pieces. This ensures even cooking and a smoother texture in your final product. Additionally, if you prefer a less sweet jam, you can reduce the amount of sugar slightly, but be mindful that sugar also acts as a preservative. To test if your jam has reached the right consistency, place a small amount on a chilled plate and run your finger through it; if it wrinkles and holds its shape, it's ready to be poured into sterilized jars.
Suggested Side Dishes
Alternative Ingredients
rhubarb - Substitute with cranberries: Cranberries offer a similar tartness and texture, making them a good alternative for rhubarb in jams.
rhubarb - Substitute with sour cherries: Sour cherries provide a comparable tart flavor and can be used to mimic the taste of rhubarb.
sugar - Substitute with honey: Honey can be used as a natural sweetener, though it will add a distinct flavor and may alter the consistency slightly.
sugar - Substitute with maple syrup: Maple syrup offers a unique sweetness and can be used in place of sugar, but it will also change the flavor profile of the jam.
lemon juice - Substitute with lime juice: Lime juice provides a similar acidity and can be used to replace lemon juice in the recipe.
lemon juice - Substitute with apple cider vinegar: Apple cider vinegar offers the necessary acidity and can be used as a substitute for lemon juice, though it will impart a slightly different taste.
Other Alternative Recipes Similar to Rhubarb Jam
How to Store / Freeze Your Jam
- Ensure your rhubarb jam has cooled to room temperature before storing or freezing.
- For short-term storage, transfer the jam into clean, airtight containers and refrigerate. It will stay fresh for up to three weeks.
- If you prefer to use jars, make sure they are sterilized. Fill them with the jam, leaving about ¼ inch of headspace, and seal tightly.
- For long-term storage, consider freezing your rhubarb jam. Use freezer-safe containers or bags, leaving some space for expansion. Label with the date and contents.
- When freezing, divide the jam into smaller portions to make thawing easier and to avoid repeated freezing and thawing, which can affect the texture and flavor.
- To thaw frozen jam, transfer it to the refrigerator and let it thaw slowly overnight. Avoid using a microwave as it can alter the consistency.
- If you plan to use the jam for baking or cooking, you can thaw it directly in the saucepan over low heat, stirring occasionally until it reaches the desired consistency.
- Always check for any signs of spoilage before using stored or frozen rhubarb jam. If it smells off or has an unusual appearance, it's best to discard it.
- For an extra layer of preservation, consider using a water bath canning method. Submerge sealed jars in boiling water for about 10 minutes, then let them cool. This method can extend the shelf life of your jam up to a year when stored in a cool, dark place.
How to Reheat Leftovers
- Place the rhubarb jam in a small saucepan over low heat. Stir gently until warmed through, being careful not to let it boil.
- Microwave the jam in a microwave-safe bowl. Heat in 15-second intervals, stirring in between, until it reaches your desired temperature.
- For a quick reheat, spread the rhubarb jam on a piece of toast and pop it in the toaster oven for a minute or two. This method warms the jam and gives the toast a delightful crisp.
- If you have a double boiler, use it to gently reheat the jam. Fill the bottom pot with water and bring it to a simmer. Place the jam in the top pot and stir occasionally until warm.
- For a more rustic approach, place the sealed jar of rhubarb jam in a bowl of warm water. Let it sit for about 10 minutes, occasionally swirling the water around to ensure even heating.
Best Tools for Making Rhubarb Jam
Saucepan: A medium-sized saucepan is essential for cooking the rhubarb mixture evenly and preventing it from burning.
Wooden spoon: A wooden spoon is ideal for stirring the jam as it cooks, ensuring that the ingredients are well combined and the mixture doesn't stick to the bottom of the pan.
Measuring cups: Accurate measuring cups are necessary to measure out the rhubarb and sugar precisely, which is crucial for the jam's consistency.
Measuring spoons: Use measuring spoons to measure the lemon juice accurately, ensuring the right balance of flavors.
Sterilized jars: Sterilized jars are needed to store the jam safely, preventing contamination and extending its shelf life.
Jar lifter: A jar lifter helps safely handle the hot sterilized jars, preventing burns and ensuring a secure seal.
Ladle: A ladle is useful for transferring the hot jam into the jars without making a mess.
Funnel: A funnel can help pour the jam into the jars neatly, reducing the risk of spills and ensuring even distribution.
How to Save Time on Making Jam
Prepare ingredients in advance: Chop the rhubarb and measure out the sugar and lemon juice the night before to save time.
Use a food processor: Quickly chop the rhubarb using a food processor instead of doing it by hand.
Sterilize jars while cooking: Sterilize your jars while the jam is simmering to multitask efficiently.
Batch cooking: Double the recipe and make a larger batch of rhubarb jam to save time on future preparations.

Rhubarb Jam Recipe
Ingredients
Main Ingredients
- 4 cups rhubarb, chopped
- 2 cups sugar
- 1 tablespoon lemon juice
Instructions
- Combine rhubarb, sugar, and lemon juice in a saucepan.
- Cook over medium heat, stirring constantly, until the sugar dissolves.
- Reduce heat and simmer for 45 minutes, stirring occasionally, until thickened.
- Pour into sterilized jars and seal.
Nutritional Value
Keywords
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