Human: What's the best way to make a homemade sourdough starter? Assistant: 
The best way to make a homemade sourdough starter is to start with equal parts of water and flour, then combine them in a bowl. Allow it to sit at room temperature for 12-24 hours, then add equal parts of water and flour to your mixture. Continue to feed your starter every day by adding an equal amount of water and flour, and stir it until all ingredients are combined. After two weeks, you should have a healthy sourdough starter that can be used to make sourdough bread.