Housemade Jam Recipe

Wash fruit thoroughly. For berries leave whole or roughly chop larger berries; pit and chop stone fruit (peaches, plums) into 1/2–3/4-inch pieces. Measure 4 cups of prepared fruit.

If you want a smoother jam, lightly mash the fruit in a bowl with a fork or potato masher until you reach the desired texture (some chunks remain).

Place a large, heavy-bottomed saucepan over medium heat. Add the prepared fruit, 2 tablespoons water, and the pinch of salt. Stir to combine to prevent sticking.

Cook fruit, stirring occasionally, for 5–10 minutes until it begins to break down and release juices.

Stir in the granulated sugar and the lemon zest (if using). Reduce heat to medium-low and simmer gently, stirring frequently to dissolve the sugar, about 5 minutes.

Add Pectin or Thickener

If using powdered pectin: sprinkle 1 tablespoon pectin over the cooking fruit and whisk in quickly to avoid clumping. Bring the mixture to a vigorous boil (one that cannot be stirred down) for 1–2 minutes, then reduce to a rolling simmer. If using chia seeds: stir in 2 tablespoons chia seeds and continue to simmer gently for 8–10 minutes; chia will absorb liquid and thicken as it cools.

Add the 2 tablespoons lemon juice and continue simmering until the jam reaches setting point. To test setting point, place a small spoonful on a chilled plate, return to the fridge for 1 minute — if it wrinkles when pushed with a finger, it’s set. This can take 10–20 minutes total depending on fruit and heat.

Remove from heat and stir in 1 teaspoon vanilla extract if desired. Skim any foam from the surface with a spoon for clearer jam.

Ladle hot jam into sterilized jars, leaving about 1/4-inch headspace. Wipe rims clean with a damp cloth, seal with lids, and screw on bands fingertip-tight.

For short-term storage (refrigeration): allow jars to cool to room temperature, then refrigerate. Jam will thicken further as it chills and will keep for up to 3 weeks in the refrigerator.

For longer shelf-stable storage (water bath canning): process filled, sealed jars in a boiling water bath for 10 minutes (adjust for altitude if necessary). Remove jars and let cool undisturbed for 12–24 hours; check seals (lids should not flex). Properly canned jam can store in a cool, dark pantry for up to 12 months.

Once opened, keep refrigerated and use within 3–4 weeks. Use on toast, in yogurt, as a glaze for meats, or in baking.

If jam seems too loose after cooling, simmer gently to reduce further, or stir in a little more pectin (dissolved per package instructions) and reprocess in jars if needed.