While there are plenty of ways to cook baby food, I have thus far been cooking a food (say apples or peaches or zucchini) with a bit of water until soft and then pureeing in my food processor and pouring into jars which then go into the freezer. If you want to add a cute fabric accent to your jars just cut a square of your favorite fabric a few inches larger than the diameter of the top of your lid and place the fabric between the metal lid and the ring. As an easy inexpensive alternative, you can pour your purees into ice cub trays, freeze, and then pop the frozen little servings into freezer bags as well.
There are fun baby gadgets you can buy to prepare baby food like the Beaba. So far I have had a great time just using the stove top method, but steaming, which the Beaba does, rather than boiling, is supposed to keep more nutrients in the food. As an aside, the stuff in the grocery store is boiled to such a high temp that it is safe on the shelf for up to two years.
The jars we used to store the baby food my friend and I made the other day were everyday ball jars (size extra small). Just hit up the canning section of your grocery store. We put the jars in the freezer to store the baby food. We did not can the food. Canning baby food is not recommended because of the increased risk of botulism, as explained here.
I hope this helps some of the other mommies out there. I am not an expert on this subject at all and am learning as I go! If you have a great baby food tip or recipe, etc., please leave it in a comment so we all can benefit. Thanks ahead of time! Have to run and serve Wynn some sweet potatoes now 🙂