Preserve the harvest · Sweet preserves 1 of 3
Basic jam (and pie filling)
One method for almost any fruit: blueberries, grapes, figs, oranges, plums, or a mix. Sugar draws the juice out first, so the jam cooks faster and tastes fresher.
Warda PatelDreamDrop Gardens, Plano TX4 min readUpdated November 2026
The recipe
Sweet · 1 of 3
The one recipe to learn
Basic jam (and pie filling)
One method for almost any fruit: blueberries, grapes, figs, oranges, plums, or a mix. Sugar draws the juice out first, so the jam cooks faster and tastes fresher.
- Makes
- About 3 half-pint jars
- Time
- 1 hr rest + 30 min
- Keeps
- 3 weeks in the fridge · 1 year frozen
Ingredients
- 4 cupsfruit, chopped or crushed (about 2 lb / 900 g)
- 2–3 cupssugar (less sugar makes a softer, looser jam)
- 2 Tbsplemon juice
- 1 pinchsalt
- Optionalpectin for a firmer set (follow your package; low-sugar pectin suits this method)
- Optionalspices: a cinnamon stick, vanilla, cardamom or fresh ginger
Method
Step 1: Let it rest
Toss the fruit with the sugar, cover, and let it sit 1 hour (or overnight in the fridge). The sugar pulls the water out of the fruit and makes a syrup.
Step 2: Chill a plate
Put a small plate in the freezer. You'll use it to test the set.
Step 3: Cook
Pour everything into a wide pot and bring to a boil, stirring. If you're using pectin, add it now, following the package.
Step 4: Boil and stir
Keep it at a lively boil, stirring often, for 10–20 minutes until it thickens and the bubbles turn slow and glossy. Skim off any foam.
Step 5: Taste as you go
Add the lemon juice and a pinch of salt. The salt makes the sweetness shine and the lemon brightens it. Add spices now if you like.
Step 6: Test the set
Spoon a little onto the cold plate and freeze for 1 minute. If it wrinkles when you push it, it's done. (Or cook to 220°F / 104°C at sea level.)
Step 7: Jar it
Ladle into clean jars, cool, and refrigerate. It keeps about 3 weeks in the fridge or up to a year in the freezer.
A note on safety
These recipes are made to be kept in the fridge or freezer. To store jars at room temperature, use a tested water-bath canning recipe, such as those from the National Center for Home Food Preservation, and follow it exactly. Never keep garlic or herbs in oil at room temperature, use clean jars and dry spoons, and when in doubt, throw it out.