Homemade plum butter does not have to mean hours beside a saucepan, constantly checking that the fruit has not stuck to the bottom. There is a more convenient way: oven-baked plum butter. Put the plums into a wide ovenproof dish and let the excess water gradually evaporate as they bake.
All you really need is ripe plums, a little sugar and cinnamon. With 2 kg of plums, you can make thick, intensely fruity plum butter to use on pancakes and sandwiches, in gingerbread, crescent rolls and cakes, or as a doughnut filling.
Oven-Baked Plum Butter – The Recipe
Oven-Baked Plum Butter
3-4
300 ml jars20
minutes2-3
hoursEasy homemade oven-baked plum butter made with 2 kg of plums, sugar and cinnamon. Thick and intensely fruity, without having to stand beside a saucepan constantly.
Ingredients
2 kg ripe plums, preferably Węgierka (European prune plums)
200 g sugar
1 level teaspoon ground cinnamon
Optional:
- 3–4 cloves
- a pinch of ground cardamom
- 1 teaspoon vanilla extract
Directions
Prepare the plums
Wash the plums thoroughly, cut them in half and remove the stones. You can quarter larger fruit.Transfer the fruit to a dish
Put the plums into a large ovenproof dish, as wide as possible. Add the sugar and cinnamon and mix thoroughly.Preheat the oven
Preheat the oven to 180°C, with top and bottom heat. Leave the dish uncovered so excess water can evaporate freely during baking.Bake the plum butter
Bake for approximately 2.5 hours. Carefully stir the fruit about every 30 minutes. Check more often towards the end, as the mixture becomes thicker.Check the consistency
After about 2.5 hours, check the plum butter. If it is still too runny, bake for another 15–30 minutes. Remember that it will thicken further as it cools.Transfer to jars
Transfer the finished, hot plum butter to clean, prepared jars. If you plan to store it outside the fridge for a longer period, use an appropriate heat-processing method for fruit preserves.
Why Make Plum Butter in the Oven?
The main advantage of this method is convenience. When making plum butter traditionally in a saucepan, you need to check the fruit regularly, especially as the mixture thickens. The less water remains, the more easily it can stick to the bottom.
In the oven, the plums sit in a wide dish and gradually lose moisture. They still need an occasional stir, but you do not have to stand beside the hob constantly.
It is important to leave the ovenproof dish uncovered. The aim is to remove water, rather than trap steam inside.
Which Plums Are Best for Plum Butter?
The classic choice is Węgierka plums, a type of European prune plum. Ripe, soft, sweet fruit works best.
You do not need to pick the prettiest plums in the basket. They can be very ripe and soft. However, never use mouldy, rotten plums or fruit showing any other signs of spoilage.
The ripeness of the fruit also affects how much sugar is needed. The sweeter the plums, the less extra sugar you need for a pleasant flavour.
How Much Sugar Should You Add?
In my recipe, we use 200 g sugar for 2 kg of plums, or about 100 g per kilogram of fruit.
This amount is not compulsory. If the plums are exceptionally ripe and sweet, you can use less sugar. There are also recipes for plum butter with no added sugar at all.
Think of 200 g as a starting point. Taste the plums before you begin: they will tell you how much extra sweetness they really need.
Remember that changing the amount of sugar affects more than flavour. If you are making preserves for long-term storage, follow tested methods for preserving and heat processing them.
Can You Make Plum Butter Without Added Sugar?
Yes. Plum butter can be made without added sugar, especially with very ripe, naturally sweet Węgierka plums.
As the plums bake, water evaporates, concentrating their flavour and naturally occurring sugars.
If the plums are tart, however, a little sugar can greatly improve the flavour of the finished plum butter.
How Long Should Plum Butter Bake?
For 2 kg of plums, allow approximately 2.5 hours of baking at 180°C.
Treat that time as a guide.
Plums vary in water content, size and ripeness. The dish makes a big difference too. A large, wide dish provides more surface area for evaporation, so the plum butter may thicken faster than in a small, deep dish.
After about two hours, start watching the consistency more closely.
If it is still too runny after 2.5 hours, bake for another 15–30 minutes and check again.
How to Tell When Plum Butter Is Ready
The simplest method is the cold plate test.
Put a small amount of hot plum butter onto a cold plate and leave it briefly. This quickly shows how the mixture will behave once cooled.
If it is still very runny and spreads easily across the plate, it needs a little longer in the oven.
Do not take evaporation too far, though. Hot plum butter is always more fluid and will thicken further as it cools.
Does Oven-Baked Plum Butter Need Stirring?
With this method, stir roughly every 30 minutes.
You do not need to check the dish too often at first. The plums will release plenty of juice and begin to break down.
The final part of baking matters more. As the water content decreases, the plum butter thickens and should be checked more frequently.
This is also a good time to decide whether you like its texture.
Do You Need to Blend Plum Butter?
No. It all depends on the consistency you enjoy.
Very ripe plums will largely break down on their own during slow baking, producing traditional plum butter with noticeable pieces of fruit.
If you want a perfectly smooth consistency, briefly blend the mixture after baking.
This does not change the method itself, only the texture.
Plum Butter with Cinnamon
Plums and cinnamon go very well together, which is why we use cinnamon in the basic version of this recipe.
For 2 kg of plums, 1 level teaspoon of ground cinnamon is enough.
I do not overdo it. The fruit should remain the main flavour, with cinnamon adding just a gentle warming note.
You can use a cinnamon stick instead of ground cinnamon. Just remember to remove it before transferring the plum butter to jars.
What Else Can You Add to Plum Butter?
Basic plum butter can consist of nothing but plums. Sugar and spices are additions that let you vary the flavour.
As well as cinnamon, you could try:
- cloves – 1–2 are enough, as their aroma is very intense,
- cardamom – a small pinch gives the plum butter a warmer, spicier character,
- vanilla – a good choice for plum butter used in desserts, pancakes and sweet bakes.
You can also combine plums with cocoa to make the popular Polish chocolate plum spread, known as czekośliwka. That is a distinctly different preserve, however, and deserves a recipe of its own, which you will find here.
How to Heat-Process Plum Butter
If you want to keep your plum butter in the pantry for a longer period, do not assume that simply transferring the hot mixture to jars will always be enough.
Methods for preserving fruit at home include water-bath processing. Jars and lids must be clean, undamaged and suitable for preserving.
Transfer the hot plum butter to prepared jars, leaving the appropriate headspace beneath the lids. Wipe the jar rims carefully before sealing.
For preserves intended for long-term storage, it is best to follow current, tested home-canning guidance. Processing time depends on factors including the recipe, jar size and altitude.
A good source of information is the National Center for Home Food Preservation, whose home-preservation guidance is based on tested procedures.
How to Store Homemade Plum Butter
Store properly prepared and processed jars in a cool, dry, dark place.
Refrigerate the jar after opening. Use a clean spoon to serve the plum butter.
If the lid is bulging or leaking, or you notice mould, leakage, an unusual smell or other signs of spoilage, do not taste the contents.
How to Use Plum Butter
The simplest option is to spread it on a fresh slice of bread or chałka, Polish braided sweet bread, but there are many more possibilities.
Plum butter is excellent for:
- crêpes and pancakes,
- gingerbread,
- shortbread biscuits,
- crescent rolls,
- sweet yeast buns,
- filling layer cakes,
- porridge,
- desserts,
- filling doughnuts.
It goes particularly well with spiced cakes, chocolate, nuts and yeast-raised bakes.
Oven-Baked Plum Butter – Easy Homemade Preserves
Making plum butter in the oven is a convenient way to use a larger quantity of ripe plums. Simply stone the fruit, place it in a wide dish, add sugar and cinnamon, and let the moisture evaporate slowly.
With 2 kg plums, 200 g sugar and 1 level teaspoon of cinnamon, you have a simple base that you can adapt to your taste.
The important thing is not to treat 2.5 hours as a time set in stone. If the plum butter is thick enough, stop baking. If the plums contained a lot of water, give them a little longer, from another fifteen minutes to half an hour or more.
In this recipe, consistency is a better timer than the clock. 🍑