Rhubarb Plum Jam

Prep time: 25 min
Cook time: 65 min
Servings: 192
Yield: 192 servings

Description

This rhubarb and plum jam has delightful citrus notes thanks to orange juice and zest. Slather it on toast or spoon it over vanilla ice cream.

Ingredients

2 1/2 pounds chopped rhubarb
2 1/2 pounds Italian prune plums
3 cups white sugar, or more to taste
2/3 cup orange juice
1/3 cup water
2 teaspoons grated orange zest, or more to taste

Directions

1 Bring rhubarb, plums, sugar, orange juice, water, and orange zest to a boil in a saucepan over medium heat. Reduce the heat to medium-low and cook, stirring occasionally, until thick, about 45 minutes.
2 Meanwhile, inspect six pint-sized jars for cracks and rings for rust, discarding any defective ones. Immerse in simmering water until jam is ready. Wash new, unused lids and rings in warm soapy water.
3 Pack jam into hot, sterilized jars, filling to within 1/4 inch of the top. Run a clean knife or thin spatula around the insides of the jars to remove any air bubbles. Wipe rims with a moist paper towel to remove any residue. Top with lids and screw rings on tightly.
4 Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil and lower jars 2 inches apart into the boiling water using a holder. Pour in more boiling water to cover jars by at least 1 inch. Bring to a rolling boil, cover, and process for 5 minutes.
5 Remove the jars from the stockpot and let rest, several inches apart, for 12 to 24 hours. Press the center of each lid with a finger to ensure the lid does not move up or down. Remove the rings for storage and store in a cool, dark area.