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Orange Jam
Instructions
Since citrus fruits are seasonal products, this orange jam is usually made in winter, when oranges and lemons are at their juiciest and cheapest. Prepare the fruits by thoroughly cleaning the surface with a vegetable brush under running water.
For orange jam with lemon, you will need only the pulp of the fruits. Peel the skin and separate the segments without the white pith and membranes. Check very carefully for any seeds; they must be removed or the jam turns bitter. At this point, weigh the citrus pulp — this measurement determines the sugar amount. We have six hundred grams of orange and lemon pulp. Remember this number.
Place the prepared ingredients in a bowl and blend with a blender. You can also pass the fruits through a meat grinder; this method works well too and gives a slightly chunkier texture for those who prefer it. The blender produces a smoother, more spreadable finished jam.
Transfer the citrus puree to a saucepan and put it on the heat. Add sugar in an amount equal to the weight of the fruit pulp. Remember, we had six hundred grams of pulp, so we use six hundred grams of sugar. At this point you can also add cinnamon, ginger, or chopped nuts according to taste preference.
Bring the mass to a boil, then reduce the heat to below medium. Stir the citrus mass continuously to prevent it from burning on the bottom of the pan. The thicker it becomes, the more often it needs stirring. When foam forms, remove it with a slotted spoon to keep the jam clear and bright.
The jam should cook for exactly one hour. During this time, the mixture turns a beautiful amber color. Prepare the storage containers. Use jars with screw caps that have been thoroughly washed and sterilized beforehand. Transfer the boiling mass into the jars and seal with the lids. Sealed in this way, the jam can be stored for up to six months in either a cool place or at room temperature.
After an hour of boiling, the amber jam has almost turned into orange honey. After cooling, it becomes very thick even without added thickeners or pectin — the natural pectin in the citrus pith and lemon does all the work. Orange jam can be added to muffins and croissants, used to make filled pies, or stirred into cottage cheese and ice cream for instant flavor.
Tips
- 1
Use organic citrus when possible. The lemon zest in particular contains essential oils that flavor the entire jam, and conventional citrus is often heavily waxed and treated with pesticides that concentrate in the peel. If using non-organic fruit, scrub thoroughly with hot soapy water and rinse well before zesting. The jam’s clean, pure citrus flavor depends on starting with clean fruit.
- 2
Sterilize jars properly before filling. Wash jars and lids in hot soapy water, rinse, then heat in a 120°C oven for 15 minutes (or boil in water for 10 minutes). Fill while the jars are still warm to prevent thermal shock. Properly sterilized jars allow safe long-term storage. The same care applies to all preserves, including the kind of fruit jam paired with American pancakes.
- 3
Do the cold-plate test to check for set. Place a small plate in the freezer before starting. After about 50 minutes of cooking, drop a teaspoon of jam onto the cold plate and wait 30 seconds. Push it with your finger — if it wrinkles, the jam is set. If it stays runny, cook another 5-10 minutes and test again. This is more reliable than going by time alone.
- 4
Add a touch of cinnamon or cardamom for a more complex flavor. A single cinnamon stick simmered with the jam (and removed before jarring) adds gentle warmth that complements the citrus beautifully. Cardamom or fresh ginger work the same way. For gift giving, package the jam in pretty jars alongside warm homemade bread and a small jar of butter for the perfect food gift.
FAQ
Why is my orange jam too runny? +
Three common reasons: not enough cooking time, not enough natural pectin, or too much added water. The recipe relies on the natural pectin in the lemon to set the jam, so do not omit the lemon. Cook a full hour to evaporate enough water for proper consistency. Test for set with the cold-plate method described in the tips. If the jam is still runny after cooling, return it to the pan and cook another 10-15 minutes.
Can I use bitter Seville oranges instead of regular sweet oranges? +
Yes, and this produces a more traditional marmalade-style preserve with a slight bitterness that many people prefer. Reduce the sugar slightly (about 500g for 600g of pulp) since Seville oranges are more sour. The cooking technique stays exactly the same. Bitter orange marmalade is the classic British breakfast spread; if you can find Seville oranges in winter, they make exceptional homemade jam with deep, complex flavor.
How long does homemade orange jam keep? +
Properly sterilized and sealed jars keep at room temperature for up to six months, or up to a year in a cool dark cupboard. Once opened, refrigerate and use within a month. The high sugar content acts as a natural preservative. If you ever see mold, discoloration, or off smells, discard the jar — do not try to scrape off the bad part. For longer storage, freeze the jam in plastic containers for up to a year.
Can I reduce the sugar in this recipe? +
Sugar is essential for both flavor and preservation, but you can reduce it by about 25% (down to 450g for 600g of pulp) without compromising safety significantly. Below this amount, the jam may not set properly and will spoil faster. For low-sugar versions, add commercial pectin specifically designed for low-sugar jams. Honey or maple syrup can replace some of the sugar but change the flavor profile considerably.
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