Take your starter out of the refrigerator, stir it and pour into a large glass bowl.
Measure out 1 cup and discard (here you can make sourdough pretzels, waffles or give it to a friend so they can feed it and make their own starter!)
Add in 1 cup of flour and a1/2-3/4 cup of warm water (if your water is heavily chlorinated or unfiltered, use bottled water) Chlorine retards the starter and can affect it.
Stir to incorporate and cover with clean linen.
Allow to sit for at least 12 hours (I usually go a day). This will reactivate the yeast. When you uncover it, it will be all bubbly and ‘yeasty’
Stir and measure out how much you need for your recipe (1 cup per our example).
Now you need to feed it again – add 1 cup of flour and ½ cup of warm water.
Stir then cover. Let this sit at room temperature until all bubbly (about 3-5 hours)
Once bubbly, stir it again and pour it into a 2qrt glass jar and cover with your “holy” lid.