Strawberry & Vanilla Jam
There’s something about the last strawberries of the season that asks to be slowed down with. Softer, sweeter, a little less bright than their summer selves. Folded into a pot with vanilla and left to simmer low and slow, they become something deeper. Grounded. Familiar. The kind of thing best eaten thickly on toast beside a warm cup on a mild autumn morning.
Jam was one of the first things I ever learned to make. Every year, towards the end of blackberry season, my sister and I would head out with our grandparents to pick blackberries for preserving. This was back when people sent goats in to deal with blackberry patches instead of reaching for pesticides. We’d spend hours washing berries, staining our fingers purple, and helping prep jars for jams and freezer stock to carry us through the colder months.
At its core, jam is simple. Fruit, sugar, and acid. A ratio more than a strict recipe. One part fruit, one part sugar, and something acidic to help everything come together. Once you understand that, you can make jam from almost any berry you happen to have too much of.
Vanilla Strawberry Jam feels like a gentle way to close the season.
Strawberry & Vanilla Jam
A slow simmered strawberry jam softened with vanilla bean and balanced with tart Granny Smith apple and lemon. Slightly sweet, deeply fragrant and made for cool autumn mornings, thick toast and preserving the last of the season’s berries. Built on the simple foundations of fruit, sugar and acid, this recipe is an easy introduction to traditional jam making and a gentle reminder that some of the best things are made slowly
Ingredients
- 500g strawberries (frozen also works beautifully)
- 1 Granny Smith apple
- 500g caster sugar
- 1 vanilla bean
- Juice of half a lemon
Instructions
- Grate the apple with the skin left on (this is where much of the natural pectin lives). Hull and halve the strawberries, or chop them smaller if you prefer a smoother jam. Split the vanilla bean lengthways.
- Add the strawberries, grated apple, sugar, lemon juice, and vanilla bean to a heavy-bottomed pot and place over a medium-low heat.
- Allow everything to slowly simmer for around 1 to 1½ hours, stirring occasionally as the fruit softens and the mixture thickens. Your kitchen should smell like warm strawberries and caramelising sugar by now.
- To test whether your jam will set, keep a small plate in the fridge while the jam cooks. Drop a spoonful of jam onto the cold plate and return it to the fridge for 30 seconds. Push the edge of the jam gently with your finger — if it wrinkles, it’s ready for the jar.
- Pour into sterilised jars while still warm.
Why Apples and Lemon Help Jam Set
Fruit+Sugar+Acid+Pectin→Jam Set
Jam setting is really just a bit of kitchen science.
Strawberries are naturally low in pectin, which is the fibre responsible for creating that soft gel-like texture in jams and preserves. Apples — especially tart apples like Granny Smiths — are naturally high in pectin, particularly in their skins, which is why the whole apple gets grated in.
Lemon juice plays two important roles. Firstly, the acidity helps activate the pectin, allowing the jam to properly set. Secondly, it balances the sweetness and brightens the flavour, keeping the strawberries tasting like themselves rather than becoming overly sugary.
Sugar also matters beyond sweetness. It binds with water in the fruit, helping preserve the jam while contributing to its texture and shelf life.
It’s a quiet kind of alchemy. Fruit transformed by time, heat, and patience into something that lasts a little longer.
A jar of jam rarely survives long around here. Usually spooned onto toast still warm from the pan, folded through yoghurt, or eaten straight from the jar while standing barefoot in the kitchen.
The best preserves always seem to carry more than flavour with them. A season, a memory, a slower way of doing things.