Thai prawn curry

1. step 1
2. Heat the oil in a medium saucepan. Tip in the onion and ginger, then cook for a few mins until softened. Stir in the curry paste, then cook for 1 min more. Pour over the chopped tomatoes and coconut cream. Bring to the boil, then leave to simmer for 5 mins, adding a little boiling water if the mixture gets too thick.
   1 minute5 minutes
3. step 2
4. Tip in the prawns, then cook for 5-10 mins more, depending on how large they are. Serve alongside some plain rice and sprinkle with a little chopped coriander, if you like.
   5–10 minutes

Cooking notes

Scaling works best when you weigh ingredients rather than measure by volume — small differences in packing can compound at higher multipliers.

For volume-to-weight conversions of any ingredient — flour, sugar, butter, salts — use the ingredient converter. To translate the recipe's oven temperature between °C, °F and gas mark, see the temperature converter.

When you scale this recipe up or down, remember that cooking time does not scale linearly. A doubled cake takes longer, but not twice as long; a doubled soup takes roughly twice as long. The cooking-time guide gives sensible starting estimates by dish geometry.