Sour Cream Biscuits

2 cups all-purpose flour
1/2 teaspoon salt
1/2 teaspoon baking soda
1 tablespoon baking powder
3/4 cup sour cream
1 tablespoon plus 1 1/2 teaspoons water

Mix together flour, salt, baking soda, and baking powder. Add sour cream and mix to a soft dough. Add additional water if necessary. With well floured hands shape dough into round biscuit shapes. Bake in a preheated 450 degree F oven for 12 minutes.