Put all ingredients in a blender and whiz until you get a thick, creamy batter. Add more almond milk if it’s too thick, or more buckwheat flour if it’s too thin. It should be thick, but runny!
Heat some oil in a large frying pan, the add dollops of the batter - flatten them into circular shapes with the bottom of the spoon.
Cook them for a couple of minutes over medium heat, then flip them over and cook for another minute or so until golden.
Move them to a plate and make more blinis, using up all the batter.
Serve them with soy sauce on the side and thinly sliced spring onion scattered on top.