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Rhubarb, Strawberry, Raspberry Jam: A Taste of Summer Sunshine

Every summer, without fail, my grandmother’s kitchen transformed into a jam-making haven. The air, thick with the sweet, tart scent of simmering fruit, always signaled that the season’s bounty was being carefully preserved. I remember standing on a stool beside her, mesmerized as she expertly ladled the vibrant, jewel-toned jam into sterilized jars. The satisfying “pop” of the lids sealing was like a tiny celebration, a promise of sunshine and flavor that would brighten even the coldest winter mornings. This Rhubarb, Strawberry, and Raspberry Jam brings back those memories with every bite.

Recipe Overview

Prep Time: 30 minutes
Cook Time: 60 minutes
Total Time: 1 hour 30 minutes
Yields: Approximately 8 half-pint jars
Dietary Type: Vegan (naturally)

Ingredients

4 cups strawberries, hulled and sliced
4 cups rhubarb, trimmed and chopped
2 cups raspberries, fresh or frozen
8 cups granulated sugar
½ cup water (optional, see instructions)

Equipment Needed

Large, heavy-bottomed pot (at least 6-quart capacity)
Potato masher or fork
Cheesecloth (optional, for straining raspberries)
Candy thermometer (recommended)
Sterilized canning jars (half-pint or pint) with lids and bands
Jar lifter
Water bath canner

Instructions

Begin by preparing your fruit. If using fresh strawberries and rhubarb, wash them thoroughly. Hull the strawberries and slice them. Trim the rhubarb and chop it into ½-inch pieces. Set aside.
Now, let’s work with the raspberries. Place the raspberries in a saucepan and gently mash them using a potato masher or a fork. Cook them over medium heat until they are soft and juicy. This will help release their flavor.
Optional Seed Removal: If you prefer a jam with fewer seeds, strain the raspberries through several layers of cheesecloth. To do this, line a bowl with cheesecloth, pour in the cooked raspberries, and twist the cheesecloth into a ball. Squeeze the ball to extract all the juice. Scrape the outside of the cheesecloth to get all the pulp; don’t worry about achieving perfectly clear juice, as this is jam, not jelly. Discard the seeds. If you don’t mind the seeds, skip this step.
Combine the strawberries, rhubarb, and either the cooked raspberries (with seeds) or the strained raspberry juice in a large, heavy-bottomed pot. A heavy-bottomed pot will help prevent scorching. Add the granulated sugar.
If the fruit seems dry or you’re concerned about sticking, add ½ cup of water to the pot. This is optional, but it can help get things started.
Place the pot over medium heat and bring the mixture to a gentle simmer, stirring frequently to prevent sticking. Continue cooking, stirring often, until the jam reaches 220°F (104°C) on a candy thermometer. This can take anywhere from 30 to 60 minutes, depending on your stove and the moisture content of the fruit.
Testing for Jelly Stage (if you don’t have a thermometer): Place a couple of tablespoons of the hot jam on a chilled saucer. Let it cool for a minute or two. Gently push the jam with your finger. If it wrinkles and forms a skin, it’s ready. If it’s still runny, continue cooking and test again in a few minutes.
Once the jam has reached the proper consistency, remove it from the heat. Skim off any foam that may have formed on the surface using a spoon.
Ladle the hot jam into sterilized canning jars, leaving ¼ inch of headspace at the top. Wipe the rims of the jars with a clean, damp cloth to remove any drips.
Place the hot lids on the jars and screw on the bands fingertip-tight (not too tight, just snug).
Process the filled jars in a boiling water bath canner for 20 minutes. Be sure the water covers the jars by at least 1 inch. Adjust processing time for altitude, if necessary.
After processing, carefully remove the jars from the canner using a jar lifter and place them on a towel-lined surface to cool. Avoid tilting the jars.
As the jars cool, you should hear a “pop” sound as the lids seal. This indicates a successful seal. Let the jars cool completely, about 12-24 hours.
After the jars have cooled, check the seals by pressing down on the center of each lid. If the lid doesn’t flex, it’s sealed. If it flexes, the jar didn’t seal properly. Refrigerate any unsealed jars and use the jam within a few weeks.

Expert Tips & Tricks

Don’t Overcook: Overcooking jam can result in a thick, gummy texture and a loss of fresh fruit flavor. Use a candy thermometer and test frequently to ensure the perfect set.
Prevent Crystallization: Adding a small amount of lemon juice (about 1 tablespoon) can help prevent sugar crystals from forming in your jam.
Sterilize Jars Properly: Proper sterilization is crucial for preventing spoilage. Wash jars in hot, soapy water and then boil them for 10 minutes. Keep jars hot until ready to fill.
Adjust Sugar to Taste: While the recipe calls for a specific amount of sugar, you can adjust it slightly to your preference, depending on the sweetness of your fruit. However, remember that sugar is essential for preservation.

Serving & Storage Suggestions

This Rhubarb, Strawberry, and Raspberry Jam is delicious spread on toast, scones, or biscuits. It also makes a fantastic filling for thumbprint cookies or a glaze for grilled meats.

Storage: Properly sealed jars of jam can be stored in a cool, dark place (like a pantry) for up to 1 year. Once opened, store the jam in the refrigerator and use it within a few weeks.
Unsealed Jars: As mentioned earlier, refrigerate any unsealed jars and use them within a few weeks.
Gift Giving: This homemade jam makes a thoughtful and delicious gift! Decorate the jars with ribbons and personalized labels.

Nutritional Information

(Estimated, per tablespoon serving)

Nutrient	Amount per Serving	% Daily Value
Calories	50 kcal	3%
Total Fat	0g	0%
Saturated Fat	0g	0%
Cholesterol	0mg	0%
Sodium	0mg	0%
Total Carbohydrate	13g	5%
Dietary Fiber	0g	0%
Sugars	12g	N/A
Protein	0g	0%

Variations & Substitutions

Spice it Up: Add a pinch of ground ginger or a cinnamon stick to the jam while cooking for a warm, spicy flavor.
Add Citrus: A teaspoon of lemon or orange zest can brighten the flavor of the jam.
Other Berries: Experiment with other berries, such as blueberries or blackberries, in addition to or in place of the raspberries.
Lower Sugar: While sugar is crucial for preservation, you can try using a low-sugar pectin to reduce the amount of sugar in the recipe. Follow the instructions on the pectin package carefully.

FAQs (Frequently Asked Questions)

Q: Why do I need to sterilize the jars?
A: Sterilizing the jars eliminates any bacteria or mold that could cause the jam to spoil, ensuring a longer shelf life.

Q: Can I use frozen fruit?
A: Yes, you can use frozen fruit. There is no need to thaw the fruit before using. Add directly into the pot as described in the recipe. The cooking time may be slightly longer as the fruit thaws.

Q: How do I know if the jam has set properly?
A: Use a candy thermometer to reach 220°F (104°C), or perform the saucer test. If the jam wrinkles when pushed, it is ready.

Q: What if my jam doesn’t set?
A: If your jam is too runny, you can re-cook it. Add a tablespoon of lemon juice and continue cooking for a few more minutes, testing frequently. You can also add a small amount of pectin.

Q: Can I double the recipe?
A: Yes, you can double the recipe, but be sure to use a large enough pot to prevent boiling over. The cooking time may also be slightly longer.

Final Thoughts

I truly hope you try this Rhubarb, Strawberry, and Raspberry Jam recipe. It’s more than just a recipe; it’s a taste of summer, a jar full of sunshine and memories. Whether you spread it on your morning toast, gift it to a friend, or savor it straight from the spoon, I hope it brings you as much joy as it brings me. Don’t hesitate to share your creations and any feedback you have – happy jamming!

Rhubarb, Strawberry, Raspberry Jam Recipe