Place the rinsed buckwheat groats into a pan, cover with double the volume of water, bring to the boil and reduce to a simmer for about 20 minutes. Check the water level during cooking and add more if needed. Once cooked, place in the buckwheat into a sieve and run cold water over until it cools. Split the buckwheat between 2 bowls and top with the remaining ingredients before serving.
Notes
You can make 2-3x the amount of buckwheat groats and keep them in the fridge for a ready-made breakfast the following day.