A luscious blackberry sauce perfect for desserts or breakfast toppings.
Combine the blackberries and 1 cup of water in a saucepan over medium heat.
Use fresh blackberries for the best flavor, but frozen ones work well too.
Bring the mixture to a boil, then reduce the heat and simmer for 10 minutes, stirring occasionally.
Simmering helps to release the natural juices and flavors of the blackberries.
In a small bowl, mix the cornstarch with 1/3 cup of cold water until smooth.
Ensure the cornstarch is fully dissolved to avoid lumps in the sauce.
Slowly stir the cornstarch mixture into the simmering blackberries, stirring constantly until the sauce thickens.
Keep stirring to prevent the sauce from sticking to the pan.
Remove the saucepan from heat and stir in the sugar until fully dissolved.
Adjust the sugar to taste, depending on the sweetness of the blackberries.
Allow the sauce to cool slightly before serving or transferring to a storage container.
Cooling helps the sauce to set and enhances its flavor.