Step 1

In a saucepan over medium heat, combine cherries, water, lemon juice, sugar, salt, and cornstarch.

Step 2

Bring to a boil over medium-high heat. Reduce the heat to low and cook, stirring frequently, for 8 – 10 minutes, until the mixture becomes thick. The filling is done when it is thick and becomes a deep red color.

Step 3

Stir in the vanilla extract immediately and cool before covering and storing.