Sourdough Starter

It's getting close to bread making time.
Here's how to make a sourdough starter.
Sourdough "starter" is a batter of flour and water,
To make sourdough bread, you blend the starter
with some flour and make dough.
The yeast propogates, and leavens your bread.
This is how you make your starter:

Select a wide-mouthed glass jar, Blend a cup
of warm water and a cup of flour into the jar.
That's the whole recipe!
If you want, you can add a little commercial yeast but
there should be enough 'natural' yeast in the air.

You should keep the starter in a warm place;
70-80 degrees F.. This allows the yeast already
present in the flour (and in the air) to grow rapidly.
In a week or so you should start getting lots of bubbles,
and a pleasant sour aroma. The starter may start to puff up.
This is a good thing. When your starter develops a bubbly froth,
Refrigerate the Starter and use it by adding one half of it into
your baking bread recipe and adding in an equal amount of
flour and water to the starter to keep it alive and growing.