Rhubarb Strawberry Jam
The classic springtime combination of rhubarb and strawberry make a delicious jam.
Servings: 7 half pint jars
Equipment
- Jelly Canning Jars
Ingredients
- 3 cups diced strawberries
- 5 cups diced rhubarb
- 4 cups sugar
- ¼ cup lemon juice
- 1 package low sugar powdered pectin
- ¼ teaspoon butter optional
Instructions
- Prepare your water bath canner. Fill the canner with enough water so that once the jars are in the canner, they will be covered by at least one inch of water. Cover and begin to heat over a medium-high heat.
- Measure out sugar. Set aside.
- Place the rhubarb, strawberries, and lemon juice in a large, non reactive kettle. Add ¼ teaspoon of butter, if desired, to reduce foaming.
- Combine pectin and 1/4 cup of the sugar in a small bowl. Sprinkle over the fruit.
- Cook over medium high heat until a rolling boil is reached, stirring consistently. I like to cursh with a potato masher as the fruit starts to break down.
- Once a rolling boil is reached, slowly stir in sugar.
- Continue to stir until you reach another rolling boil that can not be stirred down. Once a rolling boil is reached, cook for 1 minute, stirring constantly.
- Ladle jam into prepared jelly jars, wipe the rims with a damp cloth, add lids, and tighten rings to fingertip tight. Put into the water bath canner. When the canner has a steady boil going, time and process for 10 minutes.
- Once the jam is done processing, remove the canner from heat and let jars rest in the water for an additional 5 minutes. Finally, remove jars from the canner and allow to cool for 12-24 hours before moving.
Notes
- Make sure you are using powdered pectin rather than liquid pectin. They do not set the same.
- If you have never canned, you can reference the instructions within the pectin box for additional, more detailed directions.
- Sealed jars are shelf-stable, meaning they can be stored on a shelf unrefrigerated. If your jars don’t ping (a sign that they have sealed), they are still good. You will just need to store them in the refrigerator.
- Most sources recommend removing the rings from jars for storage so that you will know if they unseal for any reason. I generally just loosen them as much as I can without removing them.