<human>:  How can I make a sourdough starter?
<bot>: To make a sourdough starter, you'll need flour, water, and a few days of patience. Start by combining equal parts flour and water in a container to create a sticky mixture. Let the mixture sit for about 24 hours and add equal parts of flour and water again. Stir the mixture to combine and let it sit for another 24 hours. Repeat this process for several days until you notice the mixture becoming bubbly, sour-smelling, and thick. Once your starter is active, you can use it to bake delicious sourdough bread and pastries. Enjoy!