We are knee deep into berry season around our garden. The red and black raspberries are in full force. The blueberries are starting, and I just stripped the gooseberries and the naking cherries (which are super versatile! Learn more by clicking here!) Normally, the cherries grow in abundance, but with the near drought we have experienced this year, they just didn’t produce as much. That meant we had some to eat, and just a little to process. Enter a beautiful raspberry cherry jam.
Don’t worry if you don’t have access to naking cherries (but seriously, a great plant that is low maintenance with fun tart cherries that grow through zone 3!). Any tart cherry will do. I recommend using fresh red raspberries so the two fruits blend together nicely. I made the mistake of mixing red and black raspberries in a jam once, and let me just say, it looked as though there were some insects I didn’t quite clean out of the berries. Yuck!
While we are here, I will give you all the information you need to successfully can a batch of jam. However, if you are new to canning, you may likely want to gather additional information. My favorite places to learn more are The Ball’s Book of Canning or the National Center for Home Food Preservation.
Your Supplies
This recipe will result in approximately nine 8 ounce jelly jars. Be sure you have rings and lids for them.
You will need a water bath canner or large stock pot with a lid. The jars need to be off the bottom of the pot. A water bath canner will have a rack to use if you go that route. If you use a stock pot, I would invest in canning racks. You can also put a towel down in a pinch, but it is MESSY in terms of getting water everywhere.
It is also helpful to have the tools in a canning kit like this, but it isn’t necessary. Canning would be crazy challenging without the jar funnel and jar tongs. The lid lifter is also very handy.
Your Ingredients
- 4 cups raspberries (If frozen, measure first. Then thaw)
- 1 ½ cups pitted tart cherries
- 4 cups sugar
- 6 tablespoons powdered pectin
- ¼ teaspoon butter, optional
Your Steps to Raspberry Cherry Jam
Begin by measuring out your sugar in a large bowl and set aside. It’s important to have all your ingredients prepared before beginning the canning process so don’t skip this step. I also highly recommend reading through the steps more than once before beginning (I know that we are all guilty of flying by the seat of our pants when cooking).
Fill the canning kettle with enough water that the jars will be covered by at least ½” water. More is better in this case so over estimate. Begin to heat over high heat. Place the canning rack so that it is hooked over the side of the canner and put clean jars on it to keep them warm. Note: You don’t have to keep the jars in the rack, although it is helpful to keep them warm. You want the jars warm to prevent breaking when they are being filled.
Set the clean rings aside. I like to simmer my lids on low low heat in a small saucepan. Not necessary, but I like to think it helps them seal better.
Now to Create the Raspberry Cherry Jam
In a large, preferably shallow kettle, smash the raspberries and cherries with a potato masher. Stir in powder pectin. Add butter if desired. It will decrease foaming while the jam is cooking, but is not necessary. The foam isn’t bad. It just makes the jam a little less pretty.
Heat raspberries and pectin over medium high heat, stirring consistently. Once it is close to a boil, stir constantly until you cannot stir down a rolling boil. On more than one occasion, I have thought I reached this point only to go a little longer and see what a “real rolling boil” looked like.
Once a rolling boil has been reached, quickly stir in the sugar. I find a strong whisk is helpful to make sure there are no clumps of sugar in the jam. Continue to heat over medium-high heat until a rolling boil is reached again, stirring constantly. Once the roiling boil is reached, time for EXACTLY one minute. Remove from heat.
Ladle hot jam into jars using the canning funnel, leaving ¼” head space. Wipe rims of the jars as you go, top with a lid, and put on a ring so that it is finger tip tight. Finger tip tight means you know its tight but you aren’t sealing it so much so that it wouln’t leak on it’s side, if that makes sense. (Any leftover jam can go in a small container and get placed in the fridge to be enjoyed immediately)
Place jars in JUST about boiling water bath canner. Place the cover on the kettle and raise heat until a rolling boil is reached. Cook jam for 10 minutes (adjusting for your altitude…under 1000 feet, you’re good. Over? Add 5 minutes for every 1000 feet). Once the time is complete, remove canner from heat and remove the cover. Allow the jam to sit in the canner an additional 5 minutes. Then remove and place on a towel on the counter.
Measure the raspberries and pit the cherries Get everything measured ahead of time! Cook it up! Ladle it in! Look at that beautiful jam!
Afterward
Listen for the ping as the jars seal and just let them be for 24 hours. I know it will be hard to let them be because you’ll be so proud, but it’s recommended to make sure you get a good seal. Any jars that do not seal can be refrigerated and enjoyed right away. Note: It is recommended to store canned goods with their rings removed so that you can know if a false seal occurs. I generally just loosen them as loose as they can go.
Looking for other canning and preserving recipes? Check out my page below!
Raspberry Cherry Jam
Equipment
- Jelly Canning Jars
Ingredients
- 4 cups raspberries
- 1 ½ cups pitted cherries
- 4 cups sugar
- ¼ teaspoon butter optional
- 4 ½ tablespoons powder pectin
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 raspberries and cherries in a large, non reactive kettle. Crush them with potato masher. Add ¼ teaspoon of butter, if desired, to reduce foaming.
- Sprinkle and stir in the pectin. Cook over high heat until a rolling boil is reached, stirring consistently.
- 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.
