Step 2: Add Sugar and Lemon Juice

Stir in the granulated sugar and lemon juice. Allow the mixture to sit for 15–20 minutes, which helps the sugar dissolve and draws out more juice from the berries.

Step 3: Cook the Jam

Heat the mixture over medium heat while stirring frequently. Bring it to a gentle boil, then reduce the heat to a simmer. Continue cooking for 20–30 minutes, or until the mixture thickens to your desired consistency. Be sure to skim off any foam that forms on the surface.

Step 4: Test for Doneness

To determine if the jam is ready, place a small spoonful on a chilled plate. If it gels and wrinkles when pushed with your finger, it’s done. If it doesn’t, continue simmering for a few more minutes.

Step 5: Optional Flavor Boost

For an added layer of flavor, stir in vanilla extract or a pinch of cinnamon to enhance the jam’s aroma.

Step 6: Jar and Store

Carefully pour the hot jam into sterilized jars, leaving a little space at the top. Seal the jars tightly and let them cool completely. You can store the jam in the refrigerator for up to three weeks or process it in a water bath for long-term storage.

Tips for Perfect Jam

– Choose Ripe Mulberries: Fully ripe berries yield the sweetest and most flavorful jam.