In a saucepan, combine the berries and 3 Tablespoons of maple syrup.

Bring to a bubble over medium-high heat, stir frequently.

Reduce the heat to medium-low. Cook for 5 minutes. Use a fork or potato masher and break down the berries.

Add the chia seeds and cook on low for 15 minutes longer, or until the jam begins to thicken.

Remove from the heat and add the vanilla.

Transfer to a container and let cool. This keeps in the fridge for about two weeks.