Easy Small-Batch Blueberry Jam - cooking recipe

Ingredients

4 cups fresh blueberries
1 cup white sugar
1 tablespoon fresh lemon juice
1 pinch ground cinnamon (optional)

Preparation

Mix blueberries, sugar, lemon juice, and cinnamon in a saucepan; cook, stirring constantly, over medium heat until thickened, about 30 minutes.