To a small sauce pan add, blackberries, granulated sugar, fresh lemon juice, and water.
1 lb Blackberries, 1 cup Granulated Sugar, 1 cup Water, 1 Tbsp Fresh Lemon Juice
Bring mixture to a boil. Reduce heat to a low simmer and cook for 15 minutes. Strain through a fine-mesh sieve, pressing the blackberries with the back of a spoon to help release all the juices.
Pour the syrup into an airtight container. After cooling to room temperature, store syrup in the refrigerator for up to 4 weeks.
Notes
To store: Cool syrup to room temperature, then pour the syrup into an airtight container and store it in the fridge for up to 4 weeks. I like to use a mason jar.To freeze: Pour the syrup into ice cube trays and freeze. Once frozen, transfer the cubes to a freezer-safe bag or container. The syrup will last for up to 6 months in the freezer. Make sure you use a freezer-safe container.