In a large bowl, mix together oats, cocoa powder, chia seeds and salt.
Add espresso or instant coffee, milk, maple syrup and vanilla (reserve remaining ½ tbsp maple syrup and couple of drops vanilla for later).
Mix together thoroughly.
Cover bowl or pour into airtight container and refrigerate 4-8 hours.
For the 'mascarpone', add coconut yogurt and reserved maple syrup and vanilla extract to a small bowl. Stir to combine.
Remove overnight oats from fridge, and spoon about ¼ of the mixture into each jar, forming a layer.
Layer up with vegan mascarpone, then repeat these steps once more so you have two layers of each in both jars.
Sift over cocoa powder and decorate with coffee beans or strawberries
Notes
Try almond, soy or oat milk for different textures.
Whole chia seeds are fine, but ground will give more of the mousse like consistency.
Swap regular coffee for decaf or leave it out for a kid-friendly version.
Use any liquid sweeteners such as maple, agave or rice malt syrup for a natural sweetness boost.
Top with nuts or cacao nibs for added texture.
Any plant-based yogurt or dairy works well for the tiramisu oats.
Stir in a scoop of protein powder to make it a post-workout meal.
Refrigerate uneaten overnight oats in an airtight container for up to 4 days. It's best to store oat mixture and coconut yoghurt separately, as they ferment if stored together.