Homemade Black Currant Jam

Featured in: Savory Toasts

This traditional British preserve captures the intense tangy-sweet flavor of fresh blackcurrants in a ruby-red jam. The process combines 1 kg of ripe berries with sugar and lemon juice, boiled until it reaches the perfect setting point. Ready in just 40 minutes, this versatile spread yields approximately 4 cups and stores beautifully for months.

The method is straightforward: crush berries to release their juices, dissolve sugar over gentle heat, then boil rapidly until the mixture wrinkles when tested on a chilled plate. For a smoother texture, sieve out skins before adding sugar. Customise with vanilla pod or cassis liqueur for extra depth.

Updated on Thu, 05 Feb 2026 02:49:41 GMT
Thick, glossy homemade black currant jam being spooned from a jar onto toast with butter melting. Pin
Thick, glossy homemade black currant jam being spooned from a jar onto toast with butter melting. | toastybasil.com

Making Homemade Black Currant Jam is a delightful way to preserve the intense, tangy-sweet flavor of ripe summer berries. This vibrant preserve, made with fresh blackcurrants and a touch of lemon juice, results in a glossy, deep-purple spread that captures a perfect balance of tartness and sweetness.

Thick, glossy homemade black currant jam being spooned from a jar onto toast with butter melting. Pin
Thick, glossy homemade black currant jam being spooned from a jar onto toast with butter melting. | toastybasil.com

The process of watching the berries burst and transform into a thick, aromatic syrup is incredibly satisfying. Whether you are an experienced preserve-maker or a beginner, this British classic is a rewarding addition to any pantry, offering a taste of summer long after the season has passed.

Ingredients

  • 1 kg fresh blackcurrants (cleaned and stems removed)
  • 900 g granulated sugar
  • 2 tbsp fresh lemon juice
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Instructions

Step 1
Place a small plate in the freezer (for testing jam set).
Step 2
In a large saucepan, combine blackcurrants and lemon juice. Gently crush some berries with a potato masher to release juices.
Step 3
Add sugar; stir to combine. Let sit for 10 minutes to draw out juices.
Step 4
Place the saucepan over medium heat. Stir until sugar dissolves completely.
Step 5
Increase heat to high; bring the mixture to a rapid boil. Stir frequently to prevent sticking.
Step 6
Boil hard for 10–15 minutes, skimming off any foam. To test setting point, place a drop of jam on the chilled plate. Wait 1 minute, then push gently with your finger—if it wrinkles, the jam is ready.
Step 7
Remove from heat. Let sit for 5 minutes, stirring occasionally to disperse fruit evenly.
Step 8
Ladle hot jam into sterilized jars, leaving 0.5 cm headspace. Seal immediately.
Step 9
Let cool at room temperature, then label and store in a cool, dark place.

Zusatztipps für die Zubereitung

Using a heavy-bottomed saucepan is essential for maintaining even heat and preventing the sugar from scorching. Additionally, using a potato masher to lightly crush the berries at the start helps release their natural juices and pectin, which aids in achieving a perfect set.

Varianten und Anpassungen

For a smoother jam, you can pass the cooked blackcurrants through a sieve before adding the sugar to remove the skins and seeds. To experiment with flavor, try adding a split vanilla pod during the boiling process or a small splash of cassis liqueur just before removing the pan from the heat.

Serviervorschläge

This tangy preserve is the perfect partner for warm, buttered toast or freshly baked scones. It is also wonderful when swirled into creamy Greek yogurt, used as a filling for sponge cakes, or served alongside sharp cheeses for a sophisticated contrast.

Homemade black currant jam bubbling in a saucepan during cooking, sugar crystals dissolving into a deep purple syrup. Pin
Homemade black currant jam bubbling in a saucepan during cooking, sugar crystals dissolving into a deep purple syrup. | toastybasil.com

Creating your own Homemade Black Currant Jam is a simple joy that brings the best of the garden to your table. Once you have mastered the setting point, you will find yourself reaching for this deep purple preserve for every breakfast and snack.

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Recipe Q&A

How do I know when the jam is ready?

Test the setting point by placing a drop of hot jam on a chilled plate from your freezer. Wait 1 minute, then gently push with your finger—if the surface wrinkles, your preserve has reached the correct consistency and is ready to jar.

Can I reduce the amount of sugar?

Sugar acts as both sweetener and preservative, helping the jam set and extending shelf life. Reducing sugar significantly may affect texture and storage time. For lower-sugar options, consider using specialist preserving sugar with added pectin or following specifically tested reduced-sugar methods.

How long will this jam keep?

Properly sealed and stored in a cool, dark place, unopened jars will remain at peak quality for 12 months. Once opened, refrigerate and consume within 4 weeks for best flavor and texture.

Why do I need to sterilize the jars?

Sterilizing eliminates bacteria and prevents mold growth, ensuring your preserve stays fresh and safe to eat. Wash jars in hot soapy water, rinse thoroughly, then place in a low oven (120°C) for 15 minutes until completely dry before filling.

Can I use frozen blackcurrants?

Absolutely—frozen berries work wonderfully and may even release juices more readily. Thaw completely before starting and adjust cooking time slightly if needed, as frozen fruit can contain extra water from ice crystals.

What's the purpose of lemon juice?

Lemon juice provides natural acidity, which helps the jam set properly by interacting with the fruit's pectin. It also balances the intense sweetness of sugar and brightens the blackcurrant's natural tangy flavor.

Homemade Black Currant Jam

Tangy-sweet preserve made with ripe blackcurrants, sugar, and fresh lemon juice—perfect for spreading on toast or swirling into yogurt.

Prep duration
15 min
Cooking duration
25 min
Complete duration
40 min

Category Savory Toasts

Skill level Easy

Origin British

Yield 64 Portions

Dietary specifications Vegan, Dairy-free, Gluten-free

Components

Fruit

01 2.2 pounds fresh blackcurrants, cleaned and stems removed

Sweetener

01 2 pounds granulated sugar

Acid

01 2 tablespoons fresh lemon juice

Directions

Step 01

Prepare freezer test plate: Place a small plate in the freezer to use later for testing jam setting point.

Step 02

Combine fruit and acid: In a large heavy-bottomed saucepan, combine blackcurrants and lemon juice. Gently crush some berries with a potato masher to release their natural juices.

Step 03

Macerate with sugar: Add sugar and stir to combine. Let the mixture sit for 10 minutes to draw out additional fruit juices.

Step 04

Dissolve sugar: Place the saucepan over medium heat. Stir continuously until the sugar dissolves completely.

Step 05

Bring to boil: Increase heat to high and bring the mixture to a rapid boil. Stir frequently throughout to prevent sticking and scorching.

Step 06

Cook to setting point: Boil vigorously for 10 to 15 minutes, skimming off any foam that rises to the surface. To test setting point, place a drop of jam on the chilled plate. Wait 1 minute, then push gently with your finger—if it wrinkles and holds its shape, the jam has reached the correct consistency.

Step 07

Rest and distribute fruit: Remove from heat. Let sit for 5 minutes, stirring occasionally to disperse the fruit evenly throughout the jam.

Step 08

Jar and seal: Using a ladle, transfer the hot jam into sterilized jars, leaving 0.5 centimeters of headspace. Seal jars immediately with lids.

Step 09

Cool and store: Allow jars to cool at room temperature. Once cooled, label with the date and store in a cool, dark place.

Necessary tools

  • Large heavy-bottomed saucepan
  • Wooden spoon
  • Potato masher
  • Ladle
  • Sterilized jars and lids
  • Small plate for set testing

Allergy information

Review each component for possible allergens and if uncertain, we recommend consulting with a healthcare professional.
  • Contains no major allergens; however, always verify sugar packaging for potential cross-contamination warnings if severe allergies are present.

Nutrient breakdown (per portion)

These values are provided as a general guide and shouldn't replace professional medical advice.
  • Calories: 45
  • Fat: 0 g
  • Carbs: 12 g
  • Protein: 0 g