My sister in law and I used to make this all the time. it works on the same bases as sourdough starter.
List of Ingredients
2 cups sugar
2 cups flour
2 cups milk
Recipe
Day 1: Place batter in large bowl. Add 1 cup sugar, 1 cup flour and 1 cup milk. Mix well and cover tightly. Do NOT refrigerate! (Yes the batter smells!) Day 2, 3 and 4: Stir batter once a day. Day 5: Add 1 cup sugar, 1 cup flour and 1 cup milk; mix well. Day 6, 7, 8 and 9: Stir once a day. Day 10: Remove 3 cups batter and give to 3 friends with recipe.