First, mix the chia seeds with the milk.

Next, add the sea buckthorn and sweetener.

Then, chill it in the fridge for at least 2 to 3 hours, or overnight.

Finally, top it with fruit, granola, coconut, and so on, before serving.

Note: Since sea buckthorn is fairly tart, it's worth balancing its flavor with banana, mango, or honey.