Wash the blueberries carefully under cold water. Remove any stems or bad berries. Place them in a bowl and let them dry slightly. Fresh blueberries give the sorbet a natural sweet and tangy flavor.

In a small bowl, mix sugar and water until dissolved. Add fresh lemon juice and lemon zest. Stir everything well until the mixture becomes smooth and slightly fragrant with citrus aroma.

Add blueberries and lemon syrup into a blender. Blend until smooth and thick. You can leave small bits if you like texture. Add honey or vanilla extract if you want a richer flavor.

Carefully pour the blended mixture into a Ninja Creami pint container. Make sure not to exceed the max fill line. Use a spatula to smooth the top evenly for better freezing results.

Place the container in the freezer for at least 24 hours. Make sure it is completely flat while freezing. This step is very important for the perfect sorbet texture later.

Remove the frozen pint from the freezer. Place it into the Ninja Creami machine. Select the sorbet setting and let it spin. The mixture will turn into a smooth and creamy texture.

If the sorbet looks crumbly, use the re-spin function. Add a tablespoon of water or lemon juice if needed. Spin again until it becomes smooth and soft like ice cream.

Scoop the sorbet into bowls or glasses. Serve immediately while it is cold and fresh. You can add fresh blueberries or lemon zest on top for extra flavor and decoration.