Pour oat milk in a saucepan and bring to a slow boil, then reduce heat.
Add in oats, flax seeds, cinnamon, mashed banana, 1 tbsp peanut butter, and vanilla extract. Mix well to combine.
Cook for 5 minutes over a low flame.
Once poured into a bowl and ready to serve, drizzle with another 1 tbsp peanut butter and hemp seeds.