Step 1
To Make Starter: Dissolve yeast in warm water. Add 1 tablespoon white sugar, 1 tablespoon vinegar, 1/2 teaspoon salt, 1 cup of flour, and 1 cup of milk in a non-metal bowl; stir with a non-metal spoon until creamy. Cover bowl with plastic wrap and let stand in a warm place for two days to ferment. It will become bubbly and have a sour odor. Do not place in refrigerator. On the second day, third day, and fourth day: stir. On the fifth day, add 1 cup flour, 1 cup sugar, and 1 cup milk; stir. On the sixth, seventh, eighth, and ninth day: stir. On the tenth day add 1 cup flour, 1 cup sugar, and 1 cup milk. Reserve 1 cup starter; pour the remaining starter, 1 cup each, into 3 containers to give away to friends if desired. Starter is enough for 8 loaves.