Melt coconut oil in Instant Pot using the saute function. Add spring onions, stirring frequently, until translucent, about 2-3 minutes.
Stir in ginger, all the spices, tomato paste, canned tomatoes, vegetable stock cube, 1 1/2 cups of hot water, potatoes and cauliflower.
Stir everything together then put the Instant Pot lid on and select 'Pressure Cook' - and add 10 minutes. Once the Instant Pot beeps, release the steam. When the pot has released all the steam (and the float valve is down) you can safetly remove the lid. Stir in 1/2 can of coconut cream, salt and pepper (according to taste) and 1 tsp of sugar.
Serve immediately with rice, top with more coconut cream and the fresh herbs if desired.