In a 1-quart saucepan over medium-high heat, stir together the cherries, sugar and salt.
1 pound (453 grams) sweet cherries, 1/3 cup (66 grams) granulated sugar, 1/16 teaspoon salt
Stir very frequently and carefully until the cherries start to release their juice. This only took 5 minutes (but this will vary on your pan size, type, etc). You do not need to add any liquid!
Once it’s hot and the cherries have released their juices, mix together the cornstarch with the water in a small bowl.
1 1/2 tablespoons (14 grams) cornstarch, 1 tablespoon water
Turn the heat to medium and continue stirring very frequently until the mixture has thickened and coats the back of a spoon. It’ll thicken a bit more as it cools. This will take about 2-3 minutes. You’ll hear bubbling going on under the surface. You might start to get some bubbles around the edges. If it starts simmering before it thickens, turn the heat off. You don’t want to let it simmer too long. If you overcook cornstarch, it’ll cause stuff to break down.
Remove the saucepan from the heat. Stir in the vanilla extract and almond extract.
1/2 teaspoon vanilla extract, 1/2 teaspoon almond extract
Place on a wire rack to cool completely, about 1 hour. Then refrigerate until cold, about 2-3 hours. You can also chill it overnight or up to 3 days.