Irish Soda Bread

1 cup milk

1 teaspoon vinegar

2 cups all-purpose flour

1/2 teaspoon salt

1/2 teaspoon baking soda

1 teaspoon sugar (optional)

1. Preheat the oven to 400 degrees F (200 degrees C). In a cup or small bowl, stir together the milk and vinegar. Let stand 10 minutes, or until curdled.

2. In a medium bowl, stir together the flour, salt and baking soda. Slowly stir in some of the curdled milk mixture until smooth. Only use what's needed. Add more flour if needed. Flour hands and shape into a disc. Place the disc into a 9" cast iron skillet.

3. Bake for 20 minutes in the preheated oven, or until the crust feels firm to the touch.