Oven roasted plum jam

Is there anything better than a jar of homemade jam opened in the middle of winter, when you can only dream of summer fruits? For everyone who shares my love for jams, I have the perfect recipe for oven roasted plum jam. It’s thick and sweet, with a beautiful colour. And what I like the most is that it can be prepared with a minimal amount of sugar, or without at all. Have you already stocked up on plums?

A few years ago, I made jam in the oven for the first time, just out of curiosity. And I’ll never go back to the traditional method. Why? Because in my opinion, preparation in the oven is easier and less engaging. The final result satisfies me completely. In addition, the jam from the oven has a beautiful, intense colour. So if you’re wondering how to make plum jam, I recommend this method. 

Oven roasted plum jam - tips 

• What is the most important? Of course fruits, plums that ripen in the sun are a guarantee of delicious jam. The best are very soft ones, so soft that nobody wants to eat them. Simply, the quality of fruits will impact the final taste of your jam, that’s the secret. 

• How much sugar do you need? If the plums are ripe and sweet enough, the sugar can be omitted altogether. This year, I added one tablespoon of sugar (15 g) for 2.5 kg of plums. Therefore, it is important to check that the jam is sweet enough during the process and adjust the amount of sugar to your preferences. 

• I like to prepare jam in 2.5 kg batches because this amount of fruit fits perfectly in the roasting pan I use. I usually get 5 small jam jars from this amount of plums. 

• You can add a pinch of cinnamon, cloves or cardamom to the jam if you like these flavours. I stay with the basic version. 

• After putting the jam into jars, I pasteurise all of them. I put a paper towel on the bottom of a large pot and place closed jars on top so that they don’t touch each other. I pour water about 2 cm below the caps and bring it to the boil. I reduce the heat and cook the jars for about 15-20 minutes.

Oven roasted plum jam

Thick and sweet jam, with a beautiful colour.

Print Pin Recipe

Prep Time 1 hour hr 30 minutes mins

Course Jam

Servings 5 jars

Ingredients

  

• 2,5 kg ripe plums
• 1 tsp sugar (optional)

Instructions

 

• Preheat the oven to 190°C.
• Rinse the plums, remove the pits and cut them into quarters. Place the prepared fruits into a high baking tray.
• Place the plums in the oven and bake for 30 minutes. After this time, remove the baking tray (be careful, there will be a lot of hot steam in the oven) and stir the plums. They should release a lot of juice at this stage. Taste them, to check if they are sweet enough. If needed, add a tablespoon of sugar and mix. Place them in the oven for another 30 minutes.
• After this time, remove the baking tray from the oven, mix and check the consistency (after cooling down it’ll be slightly thicker). If the jam is still too thin, put it in the oven for an additional 15-20 minutes (be careful, you don’t want to burn it). Put the prepared jam into clean jars and pasteurise. Ready!

Keywords oven roasted jam, plums

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