Preparation Time: 20–25 minutes
Cooking Time: 35–45 minutes
Total Time: 60–75 minutes
Cooling/Setting Time: 12–24 hours
Intensity Level: Easy to Moderate
Intensity Explanation
This recipe is rated easy to moderate because it involves basic chopping and stovetop cooking, but also requires attention during boiling and setting stages. You do not need advanced cooking skills, but you should be comfortable handling hot sugar mixtures and sterilizing jars safely.
Ingredients
To prepare this jam, you’ll need simple, fresh ingredients:
- 500g fresh strawberries (hulled and chopped)
- 500g fresh rhubarb (trimmed and chopped into small pieces)
- 700g granulated sugar (adjust slightly to taste)
- 2 tablespoons lemon juice (freshly squeezed preferred)
- 1 teaspoon lemon zest (optional, for extra brightness)
- 1 packet pectin (optional, depending on desired thickness)
Equipment Needed
- Large heavy-bottomed saucepan
- Wooden spoon or heat-resistant spatula
- Sterilized glass jars with lids
- Kitchen thermometer (optional but helpful)
- Ladle or jam funnel
- Clean cloth or paper towels
Step-by-Step Instructions
1. Preparing the Fruit
Start by washing the strawberries thoroughly under cool water. Remove the green tops and chop them into halves or quarters depending on size. Rhubarb should be washed, trimmed of leaves (which are toxic and must be discarded), and cut into small, even slices.
Uniform chopping helps the fruit cook evenly and break down into a smooth jam texture.
2. Maceration (Softening the Fruit)
Place the chopped strawberries and rhubarb into a large mixing bowl. Add the sugar and lemon juice, then gently stir until the fruit is well coated. Let this mixture rest for 30–60 minutes.
This step, called maceration, draws out natural juices from the fruit. It improves flavor depth and helps reduce cooking time later.
3. Cooking the Jam
Transfer the fruit mixture into a large heavy-bottomed saucepan. Heat over medium intensity until the sugar fully dissolves. Stir frequently to prevent sticking or burning.
Once the mixture becomes liquid and starts to bubble, increase heat slightly to bring it to a steady boil. Maintain a medium-high intensity boil for 20–30 minutes, stirring occasionally.
As the fruit cooks, strawberries will break down quickly while rhubarb softens into a tangy base. The mixture will gradually thicken and darken in color.
4. Testing the Consistency
To check if the jam is ready, use one of these methods:
- Cold plate test: Place a small spoonful of jam on a chilled plate. Let it sit for 30 seconds, then push it gently with your finger. If it wrinkles slightly, it is ready.
- Thermometer test: The jam reaches setting point at approximately 104–105°C (220°F).
If the jam is still too runny, continue boiling for another 5–10 minutes and test again.
5. Adding Pectin (Optional Step)
If you prefer a firmer, more gel-like jam, pectin can be added according to package instructions. Add it during the boiling stage and stir thoroughly to avoid lumps. This step is optional because strawberries naturally contain some pectin, and rhubarb helps balance acidity for natural setting.
6. Sterilizing Jars
Before the jam finishes cooking, sterilize your glass jars. Wash them in hot soapy water, rinse well, and place them in a hot oven (about 120°C) for 10–15 minutes or boil them in water for 10 minutes.
Sterilization is important to prevent bacterial growth and extend shelf life.
7. Filling the Jars
Once the jam reaches the correct consistency, remove it from heat immediately. Carefully ladle the hot jam into sterilized jars, leaving about 0.5 cm of space at the top.
Wipe the rims clean, seal tightly with lids, and allow jars to cool at room temperature.
As they cool, you may hear a popping sound—this indicates a proper vacuum seal.
8. Setting and Resting
Leave the jars undisturbed for 12–24 hours. During this time, the jam will thicken further and fully set.
After resting, check the seals. Properly sealed jars can be stored at room temperature; unsealed jars should be refrigerated and used first.
Storage Instructions
- Sealed jars: Store in a cool, dark place for up to 6–8 months
- Opened jars: Refrigerate and consume within 2–3 weeks
- Always use a clean spoon to avoid contamination
Flavor and Texture Profile
This jam has a bright ruby-red color with a glossy finish. The strawberries bring sweetness and aroma, while rhubarb adds a refreshing tart edge that prevents the jam from becoming overly sugary. The texture should be thick yet spreadable, with small fruit pieces suspended in a smooth gel.
Serving Suggestions
- Spread on buttered toast or warm bread
- Use as a filling for pastries or doughnuts
- Swirl into yogurt or oatmeal
- Pair with cheese boards for a sweet-savory contrast
- Add as a topping for cheesecakes or pancakes
Nutritional Information (Per Tablespoon Approx. 20g)
- Calories: 50–55 kcal
- Carbohydrates: 13–14 g
- Sugars: 12–13 g
- Fat: 0 g
- Protein: 0 g
- Fiber: 0.3–0.5 g
- Sodium: 0 mg