This Slow cooker green tomato jam is gently sweetened by the sugar, while the lemon juice and zest bring out the tomatoes’ natural tang, prepared using green tomatoes, sugar, lemon zest, lemon juice.

To make Green Tomato Jam in your slow cooker or crockpot, simply combine the ingredients, cook on high until boiling, then simmer on low until thickened, about 2-3 hours.

The sugar enhances the sweetness of the jam and helps it thicken nicely with the natural pectin from the tomatoes. Try making this at home and share your thoughts in the comments below.

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Is It Necessary to Peel the Tomatoes Before Making the Jam?

No need to peel them! The skins of green tomatoes are thin and add a nice texture to the jam. Plus, who wants to waste time peeling when you could be jamming?

Slow Cooker Green Tomato Jam Ingredients

• 2 pounds (about 900g) of green tomatoes, cored and chopped
• 1 ½ cups (300g) granulated sugar
• 1 teaspoon (5ml) grated lemon zest
• 2 tablespoons (30ml) lemon juice, divided
• ¼ teaspoon salt

How To Make Slow Cooker Green Tomato Jam

1. Prepare the Tomatoes: Combine the chopped green tomatoes, granulated sugar, and 1 tablespoon of lemon juice in a large nonreactive bowl. Stir everything together until well mixed. Cover this mixture and refrigerate it for at least 1 hour, or up to 12 hours, to enhance the flavors.
2. Cook the Mixture: Transfer your chilled tomato mixture into the slow cooker. Set your slow cooker on high and let the mixture come to a gentle boil. This should take about 2 hours.
3. Add Flavor and Texture: Once boiling, add the grated lemon zest and salt to the mixture. Pour in the remaining tablespoon of lemon juice, then stir well. Reduce the slow cooker to low heat and let it simmer. The mixture should thicken and become syrup-like after about 2 to 3 hours, stirring occasionally.
4. Blend the Jam: After the jam has thickened, carefully ladle it into a blender in batches, if necessary. Remove the center piece of the blender lid to allow steam to escape, and cover the opening with a clean towel. Pulse the blender for 10 to 15 seconds or until mostly smooth. Be cautious when handling hot liquids.
5. Chill and Store: Transfer the blended jam into a medium nonreactive bowl or a pint-sized mason jar. Let it cool uncovered, then refrigerate to chill completely, approximately 30 minutes. Serve your green tomato jam chilled, or seal it airtight and refrigerate. It can be stored and enjoyed for up to 3 weeks.

Can I Use Ripe Tomatoes Instead of Green Tomatoes for This Jam?

Absolutely not! Stick to green tomatoes because they have that necessary tartness and firmness that survive the slow cooking process. Ripe tomatoes will turn too mushy and sweet for this specific Green Tomato Jam recipe.

Recipe Tips

• Check the Sweetness: If you like your jam a bit tangier, reduce the sugar by a quarter cup and add a splash of vinegar for that extra zing.
• Stir Occasionally: Even in a slow cooker, it’s good to give your jam a stir now and then to prevent sticking and ensure even cooking—think of it as giving your jam a little pep talk.
• Taste and Adjust: Don’t hesitate to taste your jam towards the end of cooking; if it needs more tartness, add a bit more lemon juice. It’s like adjusting the volume on your favorite song.
• Jar It Right: When filling your jars, leave about half an inch of space at the top to let the jam settle comfortably without overflowing, like ensuring your socks don’t slide down inside your boots.

Recipe Variations

• Spice It Up: Add a teaspoon of cinnamon or a pinch of clove for a warm, spicy twist that feels like a small, delightful firework going off with each bite.
• Herbal Notes: Stir in a tablespoon of finely chopped fresh basil or mint at the end of cooking for a fresh, herby touch that’s like a little garden party in your mouth.
• Citrus Twist: Replace lemon juice with orange or lime juice for a citrusy variation that dances on your palate like a sunny day at the beach.
• Berry Delicious: Mix in half a cup of fresh or frozen raspberries during the last hour of cooking for a berry-infused jam that’s like a friendly berry joining the tomato party.

What To Serve With Green Tomato Jam

Serve your Green Tomato Jam with sharp cheddar cheese, crusty sourdough bread, grilled chicken, roasted pork, and creamy brie.

You can also pair it with fresh arugula salads, warm biscuits, and as a topping on savory pancakes.

How To Store Leftover Green Tomato Jam

In The Fridge:

Place your Green Tomato Jam in an airtight container or a mason jar with a tight lid. Ensure the container is clean and dry before storing the jam to avoid contamination. Store it in the fridge for up to 3 weeks.

In The Freezer:

Green Tomato Jam does not freeze well due to its high sugar and low-fat content, which can affect its texture and flavor. Freezing might cause it to become syrupy and lose its desirable consistency.

Check out More Slow Cooker Recipes:

• Slow Cooker Rhubarb Jam
• Blackberry Jam in Slow Cooker
• Slow Cooker Onion Jam