Cut the courgettes into small chunks.
Boil the courgette for 5 minutes.
Add frozen peas and boil for a further 3-4 minutes.
Drain vegetables and cool.
Add 100ml breast milk, standard infant formula or a specialised low potassium, low phosphate feed (as advised by your dietitian).
Use a blender to whizz up to a purée consistency.
Add more breast milk, standard infant formula or the specialised low potassium, low phosphate feed if a thinner consistency is required.
Add into ice cube trays and freeze or use straight away.