A Simple Recipe for Tomato Jam - California Grown (2024)

FAQs

What is tomato jam made of? ›

Combine tomatoes, sugar, lemon juice, ginger, red pepper flakes, salt, cinnamon, and cumin in a large, heavy-bottomed pot and bring to a boil over medium-high heat, stirring frequently. Reduce heat and simmer until mixture reaches a thick, jam-like consistency, about 2 1/2 hours.

You need sugar for the kind of gooey, sticky quality we associate with jam; otherwise, all you're producing is a tomato sauce, no matter how different the flavor is from the classic. Once you add that sugar, however, you need acid, because even though tomatoes are plenty acidic, they can't counter all that sugar.

If there isn't enough pectin in the fruit itself and you don't add extra pectin, the result is runny jelly or jam. Additionally, if the fruit is overripe, its pectin levels are lower. Added pectin comes in a couple of forms. You can find powdered pectin and liquid pectin at grocery stores and online.

Making jam without pectin is easy, you just have to cook it longer. This recipe produces a very thick, rich tasting jam, but if you like your jam a bit looser, cook it 5 minutes less than the suggested cooking time.

Add chia seeds.

Those gelling properties can be put to work in jars of loose jam too. Add a tablespoon of chia seeds to each eight-ounce jar and stir to combine (you can also purée the jam together with the seeds if you'd prefer to reduce the visibility of the seeds).

Pectin, naturally found in fruit is vital to make your jam set. With low-pectin fruits like strawberries, help them along by either mixing with pectin-rich fruit like gooseberries or by using jam sugar (with added pectin and citric acid).

Lemon is crucial to balancing those sweet flavors, but it also helps the pectin to firm up the jam. It can be added at the start of the cooking process or towards the end, but what must be taken into account is that adding liquids to the jam mixture will inevitably require the jam to cook for longer.

Pectin Substitute

Cornstarch - Another plant-based thickening agent, cornstarch is a great substitute for pectin. Gelatin - For non-vegan menu items, you can substitute gelatin for pectin, but it will yield a different consistency.

You will need approximately half the amount of pectin that is indicated by your recipe. Please be careful when adding pectin as too much will leave you with a set that is too solid and it is not possible to rectify this so always add less than you think is necessary and test the set and then add more if required.

The secret ingredient to making jam without pectin is time. The fruit and sugar need plenty of time to cook and thicken. A long, slow boil drives the moisture out of the fruit, helping to preserve and thicken it at the same time.

Can you use lemon juice instead of pectin? ›

Although we are not adding powdered pectin, we will add citric acid or lemon juice to the jam. This gives an additional pop of pectin but also some acidity that balances the sweetness of the jam. Citric acid provides very consistent results, which is why I like to use it.

Do not vary the sequence in which the ingredients are added. For example, powdered pectin does not dissolve in a sugared solution, so if you add the sugar and then the dry pectin, the jam will not be firm. Be sure you use a kettle large enough to accommodate the preserves when they are brought to a full rolling boil.

Tomato jam might sound strange to you- but we promise it's delicious. It's been described as “a cross between marmalade and ketchup,” but we think the result is a lot more complex and refined than either!

Locules - Chambers within the tomato's fruit that hold the seeds within a jelly-like substance. Most fruits have 2 or more chambers and large fruited varieties have as many as 10. Lycopersicon esculentum - The genus and species name for Tomato.

Benefits of tomato jam

On the other hand, tomato jam is rich in magnesium and potassium, as well as vitamins B, C and A, which is why it helps protect the immune system, as well as being a great ally in skin and eye care.