It feels like everyone is baking sourdough bread now, and the additional task of making a sourdough starter isn't as daunting as it sounds. The starter involves mixing flour and water together and then letting the mix rest until active yeast and lactic acid bacteria begin to ferment, giving sourdough bread its eponymous sour taste. The starter process takes a few days for the initial fermentation, then requires removing some of the mix and adding more flour and water every day for about five days. At this point you're in business to use some of the starter for sourdough bread. The payoff for all this work is that sourdough bread is high in protein, prebiotics and iron. Find out how to make sourdough bread from our friends at Food Network.