In a blender, combine milk, yogurt, banana, peanut butter, vanilla, cinnamon, a pinch of salt and, if you so choose, maple syrup or honey. Blend until smooth.

Divide mixture between two wide mouth jars and add half the chia seeds to each jar. Stir to combine and add any desired toppings. Screw top on jar, chill for several hours, then serve.

Optional toppings: Cacao nibs, roasted peanuts, sliced banana, fresh berries, coconut flakes, dark chocolate chips