In a jar or bowl, combine the oats, cacao powder, ground flaxseed, chia seeds, plant milk, date paste, vanilla, cinnamon, and salt. Stir well until the cacao is fully incorporated and there are no dry clumps.
Cover and refrigerate overnight, or for at least 6 hours.
In the morning, stir well. If too thick, add a splash of plant milk to reach your preferred consistency.
Divide between two bowls or jars. Top with chopped walnuts, pumpkin seeds, berries, cacao nibs, hemp seeds, and a drizzle of thinned date paste if using.
