I first shared this Blackberry Freezer Jam recipe on Recipe Girl, where I contribute. Bottle up ripe summer berries with this simple 5-ingredient Blackberry Freezer Jam. Spread it on toast, scones, cakes, and more.
I’m moving in three days and my house is barely packed. Packing a kitchen is hard enough—packing as a food blogger is another level. I’m downsizing to an even smaller kitchen but excited for a year in New York and the adventures ahead. One of the first things I’ll make after we move is a batch of this 5-Ingredient Blackberry Freezer Jam to keep on hand.

Freezer jam is wonderful—if you haven’t tried freezer jam like Raspberry Peach Freezer Jam yet, you’re missing out. It’s a favorite around here and we use it almost daily.

Why freezer jam is great
- True fresh flavor: Freezer jam isn’t cooked, so the berries keep their bright, fresh taste. Cooked jams often change flavor—strawberries, for example, can taste different when cooked.
- No special canning skills: You don’t need pressure cookers or complicated sterilization steps. Simple, safe storage in the fridge or freezer is all it takes.
- Minimal equipment: You only need containers (plastic or glass), a pot, a potato masher, and a freezer or refrigerator—no specialty tools cluttering your cupboards.
- Spreadable texture: Freezer jam is softer and more spreadable than many cooked jams, which can set very firm.

What will you spread this delicious 5-Ingredient Blackberry Freezer Jam on?

5-Ingredient Blackberry Freezer Jam
5-Ingredient Blackberry Freezer Jam
40 mins
5 mins
45 mins
8 cups
Garnish and Glaze
Ingredients
- 3 1/4 cups mashed blackberries
- 1/4 cup fresh lemon juice
- 1 box Sure Jell pectin
- 1 cup light corn syrup
- 4 1/2 cups granulated sugar
Instructions
- Mix the mashed blackberries and lemon juice in a large pot. Sift the pectin in a little at a time while stirring to avoid lumps.
- After the pectin is fully incorporated, let the mixture rest for 30 minutes, stirring every 7–10 minutes.
- Stir in the light corn syrup, then place the pot over medium heat. Add the sugar gradually, stirring until the sugar dissolves (about 5 minutes). The jam is ready when it reaches about 100°F or when no sugar grains remain when rubbed between your fingers. Avoid cooking longer than necessary to prevent a runny texture.
- Pour the jam into clean plastic containers or glass jars. Store in the refrigerator for up to 3 weeks or in the freezer for up to 6 months.
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Enjoy more freezer jam recipes to try next:

Raspberry Peach Freezer Jam

Strawberry Freezer Jam