Homemade Quince Jam Recipe – An Autumn Ritual
autumn, a knock on the gate, and a healthy batch of jam.

autumn, a knock on the gate, and a healthy batch of jam.
On Terra, we focus on reflections of life – the small details that tether us back to Earth: nature, memory, and the quiet rituals that keep us sane.
This isn’t a master chef’s recipe, by all means. It’s a process of curiosity, kindness, and patience: you walk the neighborhood, spot a generous quince tree, knock politely, and come home with your winnings. Then you let them ripen on the window sill for a few days. Finally, you slice, sugar, wait some more, and stir – until the pot thickens into sweet aromas.
What follows is the story of a Romanian tradition reimagined for modern simplicity: low sugar, full flavor, and no unnecessary steps.
Akin to the brave strategists of old, before we knock on doors and slice through golden fruit, it’s worth knowing what this fruit really is.
The quince (Cydonia oblonga, family Rosaceae) has been cultivated since ancient Persia and Anatolia – long before apples and pears became household names. Its Latin root, Cydonia, refers to the island of Crete, where it was first celebrated as a symbol of love and fertility.
In Romanian backyards, especially around Bucharest and the southern plains, the quince tree is a sturdy monument to autumn: large, twisted, and silver-barked, holding its luminous spoils – which by the time they ripen, seem like they’re pulling the whole tree to the ground.
Photo: Quince varieties differ in shape, either round or more elongated. Source: shutterstock
In ancient Greek mythology, the so-called Golden Apple of Discord (depicted below by Jakob Jordaens, 1633) was likely inspired by the quince. During the legendary wedding of Peleus and Thetis, Eris, the goddess of conflict, hurled a golden fruit among the gods, declaring it to belong to the fairest. The gesture ignited a rivalry between Hera, Athena, and Aphrodite – a contest of vanity that, in mythic consequence, set the events of the Trojan War into motion.
A ripe quince has a very dense, almost grainy flesh – firm to the knife, releasing a clean floral perfume that fills the room even before cutting. Its raw taste is sharp, astringent, almost unapproachable; only through heat and time does it surrender into sweetness. That transformation – from harsh to honeyed – is what gives the fruit its mythic weight.
In Bucharest’s climate, local varieties such as ‘De Buzău’, ‘Aurie de Făgăraș’, and older unnamed garden strains ripen in mid to late October, depending on rainfall and temperature. They thrive in clay-rich soil, prefer full sunlight, and can live for decades if pruned gently.
Photo: Quince blossoms @shutterstock, and a ripened quince on the window sill.
1.1. Go outside 
Take a walk. If you’re short, take a folding ladder with you. Quince trees aren’t tall by any means, and the heavy fruit will make it easier for you to grab them.
1.2. Look 
For a prosperous quince tree – the kind that still holds its leaves while others fall.
Goal: 3.5 kilograms of Quince.
Photos: Voila, we have found an excellent candidate.
1.3. Knock 
On the neighbor’s gate or porch. Ask if you can pick a few fruits, maybe offer a jar later in return – the Balkan trick or treat (my brothers and sisters will know what this is about). Most people smile when asked; quinces are often left to rot because few still make jam or brandy from them. Didn’t capture any photos here, as the neighbor was watching me very closely (maybe to not steal anything from his orchard).
1.4. Bring them home
If they’re not ripened, set them near a bright window. A few days of ripening will turn their greenish tint into warm gold. The room will slowly fill with a subtle perfume – a mix of pear, apple, and rose.
How to Tell a Ripe Quince
– Color: Even, deep yellow with very little green.
– Aroma: Noticeable from a step away, floral and sweet.
– Texture: Still firm, but no longer rock-hard.
– Skin: The fuzzy layer rubs off easily, leaving a waxy sheen.
– Sound: Lighter and more resonant.
How to Tell a Quince Is Not Yet Ripe
– Color: Green or uneven yellow.
– Aroma: Faint or leafy.
– Texture: Rock-hard to the touch.
– Skin: Thick fuzz that won’t rub off.
– Sound: Dull thud when tapped.
TL;DR
Ripening usually takes 3 – 5 days depending on temperature. Turn them daily for even color and softness. Unripe quinces are tough, tart, and lack the rich aroma and golden glow of those ready for cooking or jam.
As previously stated, for this particular batch, we started with 3.5 kilograms of quinces.
Everything else follows that scale.
2.1. You’ll need:
a) 🔪 A strong chef’s knife or cleaver for slicing (quinces are dense).
b) 🔪 A smaller paring knife to carve out the cores.
c) 🪵 A wooden cutting board.
d) 🥛 Measuring glass (must have sugar notation).
e) 🍏 3.5 kg ripened quinces (unpeeled).
f) ◽ 1/3 of their weight in sugar (around 1.15-1.20 kg for this batch).
g) 🍋 1 lemon, sliced thin, with peel included.
h) 🍯 Optional aromas: honey with ginger, honey with blueberries, or vanilla sugar.
i) 🍲 A large 4L+ pot, a wooden spoon, and clean jars with lids.
j) 🍲 A smaller pot, for leaving the fruit overnight. Needs a matching lid.
Why only one-third sugar? To keep it natural and prevent blood sugar spikes, while still getting proper preservation thanks to quince’s naturally high pectin content.
2.2. Clean & cut
2.2.1. Wash the quinces thoroughly – a toothbrush or gentle scrubbing helps remove their fuzzy coating. Below you can see correctly cleaned quince with peel.
Photos: Give ’em a good wash.
2.2.2. Cut the quince in quarters.
2.2.3. Cut the lemon in half and rub it on the flesh. The flesh of the quince is highly acidic and oxidizes quickly when exposed to air. Rub lemon juice onto the cut surfaces – its citric acid slows the oxidation by lowering the pH and inhibiting enzymatic browning.
2.2.4. Start carving the cores away. Don’t throw the cores, we’ll repurpose them. Take care here – this part is where I cut my hands every year because I am usually too lazy to bring in the second smaller knife and I use the big one for carving. This also the part when I bleed heavily from one or more fingers and I say “Last year I’m doing this”. You’re better skilled than I am, most likely – however, I invite you again to not use the same big, sharp knife – more sanitary and safer. This year I brought in gloves (new, machine-washed):
Note: You can carve deep for safety or shallow for efficiency, depending on your confidence with the knife. I show both here:
2.2.5. Slice into cubes (ideally about 1.5 – 2 cm) but keep the peel on – that’s where much of the aroma and vitamins live. I’ve cut mine way bigger than that.
2.2.6. Layer the cubes in the small pot, sprinkling sugar evenly between layers. Add the syrups (if any):
2.2.7. Cover with the lid of the smaller pot and leave overnight in pantry.
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During the night, the sugar will melt and draw out the fruit’s juice – creating a natural syrup that will form the base of your jam.
BONUS! 2.2.8. Recycle the cores. Instead of throwing the carved quince cores away, place them at the base of your garden roses. As they decompose, they enrich the soil and naturally boost the plant’s strength – leading to fuller, more vibrant blooms next spring.

Nothing great comes into being all at once, for that is not the case even with a bunch of grapes or a fig […] Let the fig tree first come into blossom and then bring forth its fruit, and then let the fruit grow to ripeness.
– Epictetus, Discourses, 1.15.7
3.1. Extract the Syrup
3.1.1. Place your large (4L or more) pot on the stove, using the widest burner set to low heat. This ensures even heating and prevents the syrup from burning.
3.1.2. Carefully pour only the liquid that formed overnight into the large pot, leaving the fruit aside for now.
Tip: Cover your smaller bowl or pot with its lid, leaving just a narrow gap. Hold it firmly with both hands, pressing your thumbs on the lid to keep it steady as you pour. This allows you to transfer the syrup cleanly – without letting any fruit pieces slip through.
3.1.3. After a few minutes, light foam will start forming on the surface. This happens as air bubbles, sugar residues, and tiny fruit particles rise to the top while the syrup heats up. Skim the foam gently with a spoon or ladle and discard it to keep the syrup clear and clean-tasting.
3.1.4. Over the next 40 to 60 minutes, the foam will gradually diminish as the liquid clarifies and thickens.
When the surface becomes clear and glossy, with small, even bubbles rising steadily and no new foam forming, the syrup has reached its perfect simmer. 
TL;DR
When you start boiling the extracted juice (no fruit yet), foam forms because of air, natural proteins, and trace fruit fibers.
– Always low heat: it begins foaming after 5-10 min, lightly.
– Between 20-30 min: foam peaks – pale and thick. Start skimming.
– After ~40-50 min (at steady low boil): the foam gradually reduces as impurities coagulate and rise; skimming them gently helps a lot.
– At ~60-75 min: the syrup clears up noticeably and begins to look glassy and slightly thicker.
You’ll know it’s ready when:
✅ Foam no longer forms even after stirring.
✅ The liquid turns amber-clear, not cloudy.
✅ A drop of syrup on a cold plate feels slightly tacky after 10 sec.
3.2. Add the Fruit
Once the syrup is thick and slightly sticky, add the cubed quinces gradually, so the temperature doesn’t drop too quickly.
Keep the heat steady and stir frequently. Quinces tend to stick if left unattended.
3.3. Slow Cooking and Signs of Readiness
Simmer for 3 to 4 hours, depending on your pot, fruit, and flame (keep it low). Keep on stirring from time to time. In the video below, at around second 00:02, you can hear a specific mucky sound. That means you need to stir more.
Video: Almost ready.
The key sign that it’s ready:
– The syrup turns clear and slightly gelatinous.
– The fruit pieces become translucent amber.
– When you stir, the sound changes – thicker, slower, more “plop” than “boil.”
That sound means you’re almost done. Turn off the heat when the texture feels unified – fruit and syrup blending smoothly but still holding form.
4.1. Cooling
4.1.1. The final result when turning off the flame can be seen below:
4.1.2. After it’s cooled off a bit, cover the pot with a very wet cloth.
It’s an old generation trick – perhaps to prevent insects, maybe to ensure even cooling. Nobody knows for sure, but it works beautifully.
Let the jam rest like this for about 12 hours:
4.2. Jarring
Once cooled:
4.2.1. Wash and sterilize your jars (boiling water or low oven).
4.2.2. Fill them carefully while the jam is still slightly warm. Sterilize and clean the outside of the jar and lid again with rubbing alcohol.
4.2.3. (Optional) For variety, you can drop one or two cloves or a small star anise into certain jars for a unique aroma.
4.2.4. Seal tightly and turn the jars upside down – this helps the air bubbles gather and ensures a mild self-seal.
Photos: Jar sealing complete.
Let them rest for another day.
No bain-marie or boiling-water bath is necessary for this traditional method if stored in a cool pantry and consumed within months. 
For very long-term storage, a short 10-minute hot-water process can be used, but it’s not essential.
The result is a fragrant, mildly sweet jam with glowing orange color and a floral perfume.
– Texture: rich, slightly gelatinous, never runny.
– Flavor base: quince + lemon + honey or vanilla variant + notes of spices.
– Store jars in a cool, dark pantry. After opening, refrigerate.
From the first knock on a neighbor’s gate to the final product cooling on the counter, this is preservation in its purest form – a blend of tradition, neighborly kindness, and autumn’s slow rhythm. These moments – patient, humble, unhurried – remind us that good things still come from time, not haste.
A Romanian autumn – a quiet ritual of preservation and curiosity, meant to be repeated, its imperfections slowly perfected. On Terra, we hold onto these things, reflect on them, and find ways to keep them alive. Special thanks to my mother and grandmother for passing this tradition on.
Stay tuned right here, on Unbound Planet.
–Theo
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