Dear Flo Werebear; For soup mentioned above;
Slice 1 large white onion and cook gently in the oil of your choice in a large lidded pan
After 5 mins add 2 or 3 garlic cloves roughly chopped
" " " a peeled and chopped celeriac, 2 cooking apples, a thumb sized bit of fresh ginger chopped, put lid on pan, stir or shake pan frequently and cook for a further 8 mins.
Add veg stock, made from powder or cube mixed with 1/2 water, 1/2 milk to cover all veg by 1 cm. Let simmer until celeriac pretty soft (abt 15 or 20 mins)
Whizz up in blender, I then put it through 'mouli legume' veg mill, about £12 from good kitchen shop; v. useful for soups made from fibrous veg like home grown celery. Serve with curls of hard cheese, made with potato peeler ot a dollop of mayo; enjoy