When buying fish, try to source a fish that is both sustainable and lower in mercury. Try to avoid fish that's typically high in mercury, such as shark (flake) or billfish (swordfish, marlin).

Quinoa is gluten free and it's a wonderfully nutritious source of fibre, protein, iron, zinc and calcium. Botanically, it's actually not a grain - it's a seed, from the same family as beetroot and spinach. You might like to add it to your fruit purées too (just cook it first following the same method as this recipe). It tends to thicken purées, so add as much water or your baby's milk as needed to achieve the desired consistency.

Unlike most packaged baby custard, this custard has no added sugar. It simply derives its natural sweetness from the dates and banana. Remember that riper bananas are naturally sweeter, so try not to use unripe banana.