In a clean glass jar (don’t use metal anything with it), add flour, water and yeast and mix with a wooden spoon. Dough should be the consistency of pancake batter. Cover with cheese cloth or a light piece of fabric and let sit on the counter. Tomorrow, you’ll take approximately 1/2 cup of the starter out to cook with and then replenish your remaining starter with another 1/2 cup water and 1/2 cup flour. Repeat every day. This will get stronger and MORE ACTIVE each day as it catches more wild yeast.