Gather Your Ingredients: First, wash the basil leaves and blueberries. Make sure that your work area is cool and clean. When you measure and get ready to go, the process goes more smoothly and is more fun.
Cook the Blueberries: Put the blueberries and ¼ cup of water in a medium-sized pot and set it over medium-low heat. Bring the mixture to a low boil and stir it every now and then. When the blueberries start to get soft, mash some of them with the back of a spoon. This lets their juices out and makes a base with chunks.
Add Sweetener and Lemon Juice: About 5 minutes into the cooking, when the blueberries are soft, add 2 to 3 tablespoons of honey or maple syrup and 1 tablespoon of lemon juice. The bright taste of the sauce comes from these ingredients, which balance the sweetness and acidity.
Incorporate the Basil: Add 10 to 12 fresh basil leaves to the pan and stir them in slowly to give the sauce their flavor. For five minutes, let the basil and blueberries cook together. Then, take out the leaves. They will have added the flavor of the herbs without making the sauce too strong.
Thicken the Sauce: To make a slurry, mix 1 tablespoon of cornstarch with 1 tablespoon of water. Pour this mixture into the pot slowly while stirring all the time. Add three to five more minutes of cooking time, or until the sauce reaches the thickness you want.
Season and Finish: To bring out all the flavors, add a pinch of salt. Then take the sauce off the heat. Allow it to cool a bit before serving. If you want to use this sauce in a certain way, you can serve it warm or cold.
Avoid Common Mistakes:
Don’t skip stirring when adding the slurry—it prevents lumps.
If the sauce becomes too thick, add a splash of water to thin it out.