1Insert the large chopping blade into the large work bowl of a food processor. Put the blueberries, simple syrup, mint and lemon juice into the work bowl. Pulse 10 times, using long pulses. Scrape the work bowl and then process for about 1 minute until smooth.
Serve immediately or place in a container to be stored in the freezer. Cover sorbet with plastic directly if freezing.
*Note: Simple syrup is equal amounts of sugar and water brought to a boil in order to dissolve the sugar. Once cup each water and sugar will yield 1 1/2 cups simple syrup. Simple syrup can last in the refrigerator for at least one month in a clean, sealed container.