Inventing new jam flavor combinations and cleaning the freezer go hand in hand, at least for me. This recipe resulted from having a bag of frozen raspberries from last year's harvest and a container of a cranberry-orange sauce I made for a family meal that produced more than we could eat. I've seen cran-raspberry juice in the store and this seemed like a natural combination. My search for recipe inspiration confirmed the idea.
Two things I think about in jam inventions: naturally occurring pectin in the fruits and berries I'm using, and overall acidity in the recipe for safe canning. I'll read a recipe written for a single ingredient like raspberries to learn whether that jam can set without added pectin. If it can, then something with more natural pectin should marry quite nicely. I don't want to use pectin because I don't want my jam to end up like a block of gelatin.
Two charts I found to help with this particular combination: A UK pectin and acidity chart that doesn't include raspberries(!) and an article from Fruits Knowledge World that focuses on pectin and provides a helpful summary bullet list.
Another handy spot: CoolConversion to calculate how many ounces or grams or cups you have when you have the measurement in some other metric. This came in handy figuring out that my 6 cups of frozen raspberries was just a tad more than the 30 ounces in the Food in Jars recipe below.
Source recipes
- Cranberry Orange Sauce, A Mindfull Mom (pause your ad blocker for the site to load)
- Cranberry Raspberry Jam, Food in Jars: Genuinely didn't find this until after I had my frozen sources defrosted and was working on ratios. She uses fresh cranberries with frozen raspberries.
- Cranberry Orange Sauce, 2 cups. If you don't have this on hand, follow the Food in Jars Cranberry Raspberry Jam recipe and add the orange zest, OJ concentrate, cinnamon and nutmeg from the sauce recipe
- Frozen raspberries, 6 cups, which is close to the 30 oz. in the Food in Jars recipe
- White sugar, 2-1/2 cups
- Triple Sec or other orange-flavored liqueur, 2-4 T. (optional)
Defrost the frozen ingredients. What you do next depends on whether you're starting with fresh or frozen cranberries instead of the sauce, which has already been cooked and has broken down the cranberry skins.
If all ingredients are whole, not precooked, mix them with the sugar and bring to a boil over high heat. Reduce to medium heat and cook. If you're starting with the leftover cranberry orange sauce, you could give the raspberries 10 minutes of cook time, then add the sauce. Doesn't hurt to just dump it all in and start, though.
Stir frequently until the jam thickens, approximately 25-27 minutes total.
Toward the end of the cook time, stir in the Triple Sec if you're adding it. It doesn't add a strong orange flavor; I just find it fun to add, but it isn't needed. Taste and adjust. Spices don't affect food safety or canning time. Do you want a stronger hint of cloves? Another spoon of OJ concentrate or more orange zest?
Follow safe canning practices from the National Center for Home Food Preservation. Process the jars in a boiling water bath, starting the timer when the water returns to a full boil after you lower the jars in.
Yield: 4 half-pints, 7 quarter-pints
I usually include pictures of beautiful jars full of deliciousness. This time I'm showing some of the wreckage from running a jam batch alongside an applesauce batch.
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