Ingredients
- 2 ½ pounds rhubarb stalks, chopped (about 8 cups)
- 1 ½ cups sugar
Instructions
- Combine chopped rhubarb and sugar in a glass or stainless steel bowl. Stir and let sit until sugar dissolves and juice is released. This can be done overnight in the refrigerator or a few hours at room temperature.
- Transfer the mixture to a stainless steel pot (avoid cast iron, enamel, copper, or aluminum as they react and discolor the jam). Heat over medium-high heat, stirring occasionally, until boiling.
- Reduce heat to medium-low and cook, stirring occasionally, for about 30 minutes until the jam thickens and rhubarb breaks down.
- Let the jam cool slightly, then spoon it into jars.
- Store the jam in the refrigerator for up to 3 weeks, or process jars in a boiling water bath for 10 minutes to preserve for up to a year. The jam is also freezer-friendly.
Notes
The recipe yields approximately four 250 ml (8 oz) jars., To store long term, process the filled jars in a boiling water bath for 10 minutes and check seals once cooled., Jam freezes well for extended storage., Use pink or red rhubarb stalks for the brightest, most attractive jam color; green stalks will yield a muddier color but same flavor., Avoid using reactive cookware which can discolor the jam; stainless steel is preferred., Rhubarb leaves are poisonous due to oxalic acid and should not be used., The recipe can be doubled or halved; adjust cooking times and vessels accordingly, and follow proper canning procedures for larger batches., Jam is ready when it thickens and wrinkles form when cooled on a spoon or plate.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Jams, Jellies, & Preserves
- Cuisine: Canning & Preserving
Nutrition
- Serving Size: 2 tablespoons
- Calories: 21 kcal
- Fat: 0 g
- Carbohydrates: 5 g
- Protein: 0 g