Process the oats, peanut flour, chia seeds, cocoa, coffee, and milk until smooth. In a high-speed blender, combine the 150g oats, 50g peanut flour, 24g chia seeds, 1 tbsp cocoa powder, 250ml plant milk, 225ml cooled coffee, maple syrup, vanilla extract, and a pinch of salt. Blend on high for 45–60 seconds until completely smooth and pourable, then divide equally among 4 jars or glasses.