Maureen O'Sullivan's Irish Bread

Maureen O'Sullivan's Irish Bread

1 level teaspoon soda bicarb (baking soda)
1 1/2 cups sour milk
Four cups flour
1 teaspoon salt
2 teaspoons baking powder

Mix baking soda in milk. Stir into sifted flour, salt and baking powder using a knife. Beat and cut with knife, keeping blade cool until dough is stiff. Spread in greased pan and mark a cross on top of dough. Bake in slow oven (300-325 degrees F.) for one and a half hours.