Add a chopped onion and stir, then cover with a lid and reduce the heat too low. Sweat the onion for around ten minutes, stirring occasionally, until soft.
Remove the lid and cook for a further minute or two to allow the onions to colour a little.
Next stir in the chopped garlic and cook for a few minutes, until softened.
Add a pinch of nutmeg and a pinch of asafoetida* (if using) and stir in.
Next add your chopped Jerusalem artichokes and a litre of vegetable stock.
Bring to the boil and then reduce to a simmer. Cover with a lid and cook for 10-15 minutes until the Jerusalem artichokes are soft.
Add 250ml oat milk then blend with a hand held blender or allow to cool then transfer to a jug blender and blend.
Return to the saucepan, season to taste with salt and pepper and then reheat.
When serving sprinkle over some chopped parsley.
Notes
Asafoetida is said to help reduce the flatulence that some people suffer from after eating Jerusalem artichokes.
Nutritional information is approximate and intended as a guide.