Strawberry rhubarb jam is one of those dark horse kind of things. It sounds more intimidating to make than it actually is and it’s always better than you thought it would be. Here’s my favorite strawberry rhubarb jam recipe. I think you’ll like it!
When Kyle and I moved into our first house together in 2003, we had three neighbors. One family was an absolute nightmare.
The man who lived in the house across the street offered to plow our driveway each winter – we liked him!
And the third house was the home of an older couple who had the most fantastic yard full of mature flowers, plants, and fruit bushes…and they liked to share! The first time Ruth sent Kyle home with an armful of rhubarb, I was overwhelmed.
I had no idea what to do with it. No idea what it tasted like, for that matter. I chopped it up and boiled it down with some sugar; I wasn’t impressed.
And in the years since living in that little old house on Horton Hill Road (to which I still fondly refer to as Horton Hears a Who Hill Road), I’ve encountered rhubarb only on a few occasions and even fewer in my own kitchen.
But I’ve always been intrigued with it and after making a strawberry rhubarb pie last summer, not only has my confidence in cooking and baking with rhubarb soared, but I’ve developed a love for this tart plant.
Like many jam recipes, the ingredient list for this one is fairly short. Here’s the basic shopping list of ingredients you’ll need:
- Fresh rhubarb
- Fresh strawberries
- Granulated sugar
- Freshly squeezed lemon juice
Can You Use Bottled Lemon Juice?
The short answer is no, you can’t.
The reason why you can swap the fresh lemon juice for bottled is because fresh has a different acidity level than bottled does. And since this recipe was developed using fresh lemon juice, the amount of sugar and fresh lemon juice are at exactly the right proportions to allow for safe water canning.
Water canning recipes require the right balance of acidity with the primary canning ingredients (in this case, fruit and sugar) to make them safe to can and so that botulism (bacterial spoiling inside the can) will not occur.
The End Result
This rhubarb strawberry jam is the perfect example of how awesome rhubarb can be. Cooked down with sweet strawberries and a little bit of sugar, the fruit’s natural pectin releases and allows the jam to thicken without ClearJel or other pectin additives.
Just enough sugar and the cooked strawberries reduces the tart effect of rhubarb and the blend of these two springtime fruits is one that has come to be such a favorite of mine.
Yes, I’ll take either of them.
- 2 lbs fresh rhubarb, trimmed of green or soft areas, cubed into 1/2-inch pieces (about 6 cups)
- 1 lbs fresh strawberries, hulled and diced (about 3 cups)
- 2 cups granulated sugar
- 1/4 cup freshly squeezed lemon juice
- To prepare for canning: Sterilize 5 half-pint (8oz) jars and keep them hot in the canning pot while you make the jam. Jar sterilization instructions can be found on www.freshpreserving.com (by Ball).
- To make the jam: Place a small freezer-safe plate in the freezer.
- Cook the rhubarb, strawberries, sugar, and 1/2 cup water in a wide, 6- to 8-quart heavy-bottomed pot over medium heat, stirring frequently until the juices cover the fruit, about 10-15 minutes.
- Pour the mixture into a colander set over a large bowl, gently stirring the fruit to drain off the juice - do not mash the fruit. Return the juice to the pot and bring it to a boil over high heat, stirring occasionally until the syrup has reduced to about 1 1/2 cups, about 20 minutes.
- Add the fruit and any accumulated juice back to the pot and stir in the lemon juice. Bring the mixture to a simmer, stirring frequently for about 15 minutes. To test when the jam is finished, spoon a few drops of the jam onto the chilled plate and return the plate to the freezer for 1 minute; the jam should become somewhat firm but not gelled. In the meantime, skim off as much foam from the jam in the pot then remove the pot from the heat and gently stir the jam for a few seconds to evenly distribute the fruit.
- Ladle the hot jam into the sterilized jars, leaving a 1/4-inch of headspace between the top of the jam and the top of the jar. Use a hot damp cloth to wipe the rim of the jars clean, then place a flat lid and ring on the top of each jar, tightening the ring to just finger-tight.
- Return the jars to the boiling canning pot, making sure the water covers the jars by at least 1 inch. Bring the water back to a boil (it will have stopped boiling after you placed the jars in it) and boil for 5 minutes. Remove the jars from the pot and place them on a dish towel - do not touch them or press down on the lids. After about 1 hour, all of the lids should have popped/sealed. If any of the lids are able to make a popping sound when lightly pushed on, keep them refrigerated as they have not been processed properly for room temperature storage. Allow the sealed jars to remain untouched for 24 hours before storing.
adapted from Canning for a New Generation by Liana Krissoff
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