1 pkg. active dry yeast
1/2 c. warm water
2 c. warm water
2 c. all-purpose flour
1 tbsp. sugar

In bowl soften yeast in 1/2 cup warm water. Stir in 2 cups warm water, flour and sugar; beat smooth. Cover with cheese cloth. Let stand at room temperature until bubbly, 5 to 10 days; stir 2 or 3 times a day (a warmer temperature speeds fermentation). Store covered, in refrigerator. To use bring to room temperature.