Strawberry Rhubarb Raspberry Jam

My neighbor Karen brought over a basket of rhubarb from her garden last spring, mentioning she had way too much. I had strawberries from the farmer market and some fading raspberries in the fridge. The combination created this beautifully complex jam that surprised both of us.

Last summer I made a double batch for my sister's wedding shower, and the guests kept asking where I bought it. Seeing people actually reach for the homemade jam over the store-bought options was genuinely satisfying.

Ingredients

• Strawberries: These form the sweet backbone of the jam, so choose berries that smell fragrant
• Rhubarb: Fresh stalks give better texture than frozen, and that pink color bleeds beautifully into the finished jam
• Raspberries: They practically dissolve into the mixture, leaving behind their signature tart sweetness
• Mixed berries: Blueberries or blackberries add little pockets of texture and deeper color
• Granulated sugar: Do not reduce this amount because sugar is what actually makes the jam set properly
• Lemon juice: Fresh squeezed makes a noticeable difference in brightness and helps with preservation
• Fruit pectin powder: This ensures consistent results even with natural variations in fruit pectin levels

Instructions

Get the fruit ready:

Combine your strawberries, rhubarb, raspberries, and mixed berries in a large non-reactive pot, then give them a gentle mash with a potato masher until you see juices starting to collect at the bottom.

Add the setting helpers:

Stir in the lemon juice and fruit pectin powder until well combined, then let this mixture sit for about 5 minutes.

Hit the rolling boil:

Keep stirring until the sugar completely dissolves and the mixture returns to a vigorous rolling boil that you cannot stir down.

Cook it down:

Let the jam boil hard for exactly 1 to 2 minutes, then immediately remove from heat.

Skim and jar:

Use a spoon to skim off any foam from the surface, then carefully ladle the hot jam into sterilized jars leaving a quarter inch of headspace.

Seal and store:

Wipe the jar rims clean, seal with lids, and process in a boiling water bath for 10 minutes if you plan to store them long-term.

Bookmark

My daughter now requests this specifically for her birthday pancakes instead of maple syrup. Watching her carefully spread it across the stack makes the canning process feel worth every minute.

Getting The Perfect Set

The secret is in that hard boil for exactly 1 to 2 minutes once the sugar is added. Too little time and you have syrup, too much and you have candy. I set a timer because in the heat of the moment, counting becomes unreliable.

Playing With Texture

Some years I leave the fruit chunky for a rustic jam, other times I use an immersion blender before adding sugar for something closer to store-bought consistency. Both ways work, it just depends on your spreading preference.

Beyond The Toast

This jam makes an incredible filling for layer cakes between vanilla frosting. The tart rhubarb cuts through rich buttercream in a way that pure fruit cannot achieve.

• Swirl a tablespoon into plain Greek yogurt for an instant breakfast upgrade
• Mix with equal parts balsamic vinegar for a quick glaze on roasted chicken
• Blend into softened butter for compound butter that transforms morning biscuits

Bookmark

There is something deeply satisfying about seeing those jars lined up on the shelf, knowing exactly where every ingredient came from.

Recipe FAQs

→ How long does this jam keep?

Properly canned and sealed jars will keep for up to 12 months in a cool, dark place. Once opened, refrigerate and use within 3 weeks for best quality and flavor.

→ Can I use frozen berries?

Absolutely. Frozen berries work wonderfully in this jam. Thaw them first and drain any excess liquid before mashing. The pectin ensures proper setting regardless of fresh or frozen fruit.

→ What's the purpose of lemon juice?

Lemon juice serves two purposes: it balances the sweetness with bright acidity and helps activate the pectin for proper setting. The acid also preserves the vibrant red color of the berries.

→ Can I reduce the sugar?

Sugar is crucial for preservation and texture in traditional jam making. However, you can reduce it slightly to 2 cups, though this may affect shelf life and set consistency. For sugar-free versions, consider special low-sugar pectin.

→ Why mash the fruit before cooking?

Lightly mashing releases natural juices from the berries, which helps dissolve the sugar evenly and distributes the pectin throughout the mixture. This ensures consistent texture and proper setting.