Check items off while grocery shopping - it’s remembered here.
Thinly slice the onion, and thinly slice the shiitake mushrooms after removing the stems. Thinly slice the chorizo, and cut the sweet potatoes into 1-2cm dice after trimming both ends, then soak in water.
In a pot, render the fat from the chorizo, then add the onion and shiitake mushrooms and sauté for 2-3 minutes until softened.
Add the sweet potato to step 2, stir gently, then turn off the heat. Add the 8g butter and stir as it melts, then add 1 tbsp cake flour and mix until no raw flour remains.
Turn the heat to low and add the water, miso, and chicken stock, in that order. Once it comes to a boil, simmer for another 8-10 minutes until the sweet potato is cooked through.
Add 300ml low-fat milk and warm just until it's about to boil and has thickened, then ladle into a bowl and sprinkle with parsley.