In a small sauce pan, place the berries with the water and the salt and place on stove to heat. When the water begins to boil, turn heat to low and cover and cook for 5 mins. Open lid and add the maple syrup and stir.
Next in a small bowl mix the arrow root flour / starch with the water and pour this mixture slowly into the sauce pan stirring it with a spoon. Cook for about 1 more minute stirring constantly. The mixture should thicken and have a jam like consistency. Turn heat off. Add the vanilla extract and stir.
Serve warm or transfer to a glass jar and store in refrigerator for up to a week. Freeze if you want to store beyond a week.
Notes
You can replace frozen berries with fresh berries but you may have to cook a bit longer than 5 mins to soften the berries.
Recipe by Cook2Nourish at https://cook2nourish.com/2019/04/easy-mixed-berry-compote-paleo-aip-vegan.html