One jar of baby food is around $.79 to $1.00 for that same amount of $ they could make it from scratch w/ extra leftover
I would suggest assisting them in making baby food to store in the freezer via ice cube amounts stored in ziploc baggie or even small containers
They can buy a bag of carrots for $2.00 cook up and fill ice cube trays with baby food ( plus they know what is in it as well as they can pick smaller amounts if the large ice cubes are too big you can do those mini ice cubes tray sizes as well.)
They can also make baby ceral cheap as well for $1.00 from the dollar store ( saves extra $$) Yes I have NOT tried this.....but they could even borrow someone processor once and do 2 bags at a time and have lots of meals for baby
Wholesome Rice Cereal
1/4 cup (around 1 oz) brown rice powder
8 fl oz (1 cup) water
a little formula/breastmilk
To make the rice powder, grind brown rice in a blender or food processor.
This is best achieved by grinding in small quantities -
but to make the powder REALLY fine, we recommend trying a coffee grinder
Bring the water to a boil.
Add the rice powder, stirring constantly with a wire whisk.
Reduce the heat to very low and simmer gently for about 10 minutes (don't forget to keep stirring, or the rice will stick).
Then stir in enough formula or breastmilk to give the consistency that's best for your baby.
Once baby has been introduced to fruit, you could always add a little of his favourite puree.