First, collect all the required ingredients
Secondly, take a medium saucepan over medium heat
Then, combine blueberries, sugar, and water
Stir nicely to dissolve the sugar
Now, bring a boil
After that, reduce the heat at low and start simmering for 10 – 15 minutes
You have to stir constantly throughout the simmering process
Then, stir the sauce with lemon juice and vanilla extract for 4 more minutes
If you want a thick sauce, add a little cornstarch slurry and simmer for 2 more minutes
Remove the saucepan from heat and cool at room temperature
Finally, the Blueberry sauce is ready
Serve the sauce with favorite dessert
