PREP TIME05 min
COOK TIME10 min
½ cup pure maple syrup
2 teaspoons arrowroot powder
¼ teaspoon kosher salt
1 cinnamon stick
3 cups fresh blueberries
In a medium saucepan, whisk the maple syrup with the arrowroot powder, salt, and ¼ cup of water.
Add the cinnamon stick and 2 cups of the blueberries.
Bring to a boil over moderate heat and cook, stirring gently, until the sauce is beginning to thicken, about 5 minutes.
Remove from the heat and mash the blueberries against the side of the saucepan with the back of your spoon.
If desired, strain the sauce through a fine mesh sieve set over a medium bowl.
Discard the cinnamon stick and stir in the remaining 1 cup of blueberries.
Let cool completely.