Homemade Strawberry Rhubarb Jam

Homemade Strawberry Rhubarb Jam is one of those recipes that makes your whole kitchen smell like a dream. We’re talking ruby-red, sweet-tart perfection — made with just five simple ingredients and ready to spread on everything in sight.

Hey there, I’m Claire Whitmore — a jam-obsessed home cook from Asheville, NC, where preserving season is basically a holiday. This homemade strawberry rhubarb jam recipe is beginner-friendly, uses pectin for a reliable set, and comes together in under an hour. It’s everything you want in a spring preserve: bright, jammy, and utterly irresistible.

I made my first batch of this strawberry rhubarb preserves on a rainy Saturday when my rhubarb patch was begging to be used. I had no idea it would become my most-requested gift every spring. Spoiler: it did. Now I make eight jars at a time and still somehow never have enough.

Little Snapshot: What This Recipe Delivers

This homemade strawberry rhubarb jam combines ripe mashed strawberries, chopped rhubarb, lemon juice, pectin, and sugar into a thick, glossy preserve with the perfect balance of sweet and tart. It yields about 8 half-pint jars, takes roughly 40 minutes total, and is beginner-level easy — even for first-time canners.

Think of it as your new go-to spring preserve: gorgeous enough to gift, practical enough to eat straight from the jar with a spoon.

Nutritional Peek

Here’s the approximate nutritional breakdown per 1-tablespoon serving of this strawberry rhubarb jam.

Nutrient	Amount Per Serving (1 tbsp)
Calories	45 kcal
Carbohydrates	11.5 g
Sugar	11 g
Protein	0.1 g
Fat	0 g
Fiber	0.2 g
Sodium	0 mg

Ingredients for Strawberry Rhubarb Preserves

For the fruit base — ripe strawberries (mashed down) and fresh rhubarb — you’ll want everything washed and chopped before you start, because once this jam gets going, it moves fast. For the set and flavor — pectin, lemon juice, and granulated sugar — these work together to give you that perfect glossy, spreadable texture.

Amount	Ingredient
5 cups (mashed to 2½ cups)	Ripe strawberries — the riper the better for flavor
2 cups	Rhubarb, washed and chopped (fresh is ideal, but frozen works too)
2 tbsp	Fresh lemon juice — don’t skip this, it balances the sweetness beautifully
1 package	Pectin (powdered, like Sure-Jell or Ball Classic Pectin)
4½ cups	Granulated sugar — yes, all of it. Trust the process.

Tools You’ll Actually Use

• Large heavy-bottomed pot or Dutch oven (at least 6-quart)
• Potato masher
• Wooden spoon or heat-resistant spatula
• 8 half-pint (250 ml) mason jars with lids and bands
• Ladle
• Canning jar lifter (optional but helpful)
• Clean cloth or paper towels for wiping rims
• Large pot for sterilizing jars (if using boiling water bath method)

How to Make Homemade Strawberry Rhubarb Jam Step by Step

Making this homemade strawberry rhubarb jam is genuinely fun — the kind of kitchen project that feels like a weekend ritual. Follow these steps and you’ll have gorgeous jars of jam before the afternoon is over.

Step 1: Sterilize Your Jars

Inspect, wash, and sterilize 8 half-pint (250 ml) mason jars and their lids. Run them through a hot dishwasher cycle or submerge in boiling water for 10 minutes. Keep them hot until you’re ready to fill — cold jars can crack when filled with hot jam.

Step 2: Prep the Fruit

Wash, hull, and roughly chop the strawberries. Wash and chop the rhubarb into half-inch pieces. Pat everything dry before you start — excess water can affect your jam’s set and consistency.

Step 3: Mash the Strawberries

Add the strawberries to your large pot in layers and mash them thoroughly with a potato masher until you reach about 2½ cups of mashed fruit. You want it chunky-smooth — not totally pureed — so there’s still a little texture in the finished jam. Add the chopped rhubarb on top.

Step 4: Add Pectin and Lemon Juice

Stir in the full package of powdered pectin and the 2 tablespoons of fresh lemon juice. Mix everything well to make sure the pectin is evenly distributed throughout the fruit — this is what gives your jam a reliable, glossy set.

Step 5: Bring to a Rolling Boil

Set your stove to medium-high heat and stir constantly as the mixture heats up. You’re waiting for a full rolling boil — one that you can’t stir down even when you try. This is an important step, so don’t rush it or leave it unattended.

Step 6: Add the Sugar

Once the fruit mixture reaches that hard rolling boil, add all 4½ cups of sugar at once. Stir quickly to combine, then let the mixture return to a full rolling boil. Once boiling again, set a timer and boil hard for exactly one minute, stirring constantly the whole time.

Step 7: Rest and Skim

Remove the pot from the heat and keep stirring for another 5 minutes — this helps the fruit distribute evenly so you don’t get a layer of fruit floating at the top of each jar. Skim off any foam that rises to the surface using a spoon. A little foam is totally normal.

Step 8: Ladle into Jars

Carefully ladle the hot jam into your hot sterilized jars, leaving about ¼-inch of headspace at the top. Wipe each rim clean with a damp cloth, then place on the lids and screw on the bands until they’re fingertip-tight — snug, but not muscle-tight. Over-tightening can prevent a proper seal.

Step 9: Cool and Check Seals

Set the filled jars on a towel and allow them to cool completely overnight. You’ll hear the satisfying pop of each lid sealing as they cool — honestly one of the best sounds in home cooking. The next morning, check each lid: it should feel firm and not flex when pressed in the center. Any jars that didn’t seal should go straight to the refrigerator and be used within 3 weeks.

Claire’s Pro Tips for Perfect Strawberry Rhubarb Preserves

Making strawberry rhubarb preserves for the first time? These are the little tips I wish someone had told me before my first batch. A couple of small moves make a big difference in your final result.

Don’t wing it on the pectin-to-fruit ratio. Follow the package directions closely, especially when it comes to the sugar amount. Reducing sugar in a standard pectin recipe can prevent the jam from setting properly.

Use the ripest strawberries you can find. Overripe berries that are too soft to eat fresh are actually perfect here — they’re sweeter, juicier, and mash down beautifully. Don’t waste your perfect farmers market berries on jam.

Always have your jars hot when you fill them. Pouring hot jam into cold jars is a recipe for cracked glass and a very sad afternoon. Keep them warm in a low oven (around 200°F) or leave them in hot water until you’re ready.

Don’t stress the foam. Skimming off the foam after cooking is important for a clear, pretty jam — but a few bubbles won’t ruin the flavor. A small pat of butter stirred in at the start can reduce foaming if that’s a concern for you.

Quick Fixes for Homemade Strawberry Rhubarb Jam

Even experienced jammers run into the occasional hiccup. Here’s what to do when things don’t go exactly to plan.

My jam didn’t set and looks runny. Don’t panic — sometimes jam needs up to 48 hours to fully set as it cools. If it’s still runny after two days, you can reprocess it by cooking it again with a little extra pectin. Alternatively, embrace the syrup life — it’s incredible on pancakes and in cocktails.

There’s too much foam on top. This is completely normal with high-sugar jams. Skim it off with a spoon after removing the pot from heat. Stirring in a small pat of butter at the start of cooking can also help reduce foam production.

My jars didn’t seal. This happens! Lids that flex up and down in the center after cooling haven’t sealed. Pop those jars straight into the refrigerator and use them within 3 weeks — the jam is still perfect, just not shelf-stable.

The jam tastes too sweet. The rhubarb’s tartness should balance things out, but if your strawberries were very sweet, add an extra squeeze of lemon juice next time. A little citrus zest stirred in at the end can also brighten the flavor beautifully.

The fruit all floated to the top of the jars. This is why we stir for 5 minutes after removing from heat! That resting-and-stirring step helps suspend the fruit evenly. If you see separation in your sealed jars, it’s a purely cosmetic issue — give the jar a gentle shake once opened.

Variations and Fun Twists on Rhubarb Strawberry Jam

One of the best things about a solid rhubarb strawberry jam base is how easy it is to customize. Once you’re comfortable with the basic recipe, here are some fun directions to take it.

Vanilla Bean: Split a vanilla bean and add it to the fruit mixture as it heats. Remove it before ladling into jars. The subtle, floral warmth it adds is absolutely stunning.

Balsamic Strawberry Rhubarb: Swap 1 tablespoon of lemon juice for good-quality balsamic vinegar. It deepens the color, adds a touch of complexity, and makes the jam taste almost wine-like.

Ginger Rhubarb Twist: Add 1 teaspoon of freshly grated ginger with the rhubarb. Spicy, bright, and unexpected — it’s a real crowd-pleaser at brunch tables.

Low-Sugar Version: Use a no-sugar-needed pectin (like Sure-Jell for Less Sugar recipes) and reduce the sugar to about 2 cups. The set will be slightly softer but still delicious, and the fruit flavors really shine through.

Mixed Berry Rhubarb: Replace half the strawberries with fresh raspberries or blueberries for a more complex berry-rhubarb jam. Different every time, and always gorgeous.

Serving, Storage, and Reheating

This strawberry rhubarb jelly — well, technically jam — is endlessly versatile when it comes to serving. Spread it thick on sourdough toast, swirl it into yogurt, dollop it over vanilla ice cream, or use it as a glaze for roasted chicken thighs. It’s also incredible alongside something savory like these crispy garlic parmesan roasted baby potatoes for a sweet-savory spread moment.

Properly sealed jars of this jam will keep at room temperature in a cool, dark place for up to 12 months. Write the date on each lid with a marker so you remember when you made them — though honestly, they rarely last that long.

Once a jar is opened, store it in the refrigerator and use within 3–4 weeks. No reheating required — just let a cold jar sit at room temperature for 10 minutes if you want it extra spreadable.

No-Waste Kitchen Magic

Don’t let a single bit of this batch go to waste — there are so many ways to use up every last drop.

If you have leftover foam you skimmed off the top, don’t throw it away! That foamy stuff is still delicious — spread it on toast while the jam cools, or stir it into plain yogurt for an instant fruity treat.

Any jam that doesn’t quite set can become the most incredible pancake syrup, cocktail mixer, or salad dressing base. Just thin it slightly with a splash of lemon juice or water and store in the fridge.

Rhubarb leaves are toxic and should never be eaten or composted near food gardens — but the stalks are entirely the star. If you have extra rhubarb after making this recipe, freeze the chopped pieces flat on a baking sheet, then transfer to a bag. They’ll keep for up to a year and are perfect for future jam batches or baking projects like this gorgeous sourdough discard brown butter banana bread.

FAQs About Homemade Strawberry Rhubarb Jam

Cozy Closing

There’s something genuinely magical about a jar of homemade strawberry rhubarb jam sitting on your counter — especially when you made it yourself. It’s the kind of thing that makes you feel like you really have your life together, even when you absolutely do not.

I’d love to see your spin on this homemade strawberry rhubarb jam! Drop a comment below with your photos or tell me which variation you tried — I’d love to see how you made it your own. This jam is so versatile; I bet you’ve already got amazing ideas brewing.

Happy jamming, friends. Your toast is about to get a serious upgrade.

I’m Claire Whitmore — a preserve-obsessed home cook from Asheville, NC. For me, jam-making isn’t about perfect jars — it’s about the joy of filling your pantry with something you made from scratch (and maybe sneaking a spoonful straight from the pot before it even cools).