Place chicken in a Dutch oven. Add water and 2 teaspoons salt. Bring to a boil. Cover, reduce the heat, and simmer for 1 hour or until tender (should almost fall off bone). Remove the chicken from the broth and cool. Bone the chicken and cut meat into bite-sized pieces. Bring the broth to a boil and add pepper. Combine the flour, baking soda, and salt. Cut in the shortening. Add the buttermilk, stirring with a fork until moistened. Knead the dough 4 to 5 times (never done), and pat to 1/2-inch pieces and drop into boiling broth (I do not pat it out, just pinch off pieces). Reduce the heat to medium-low, and cook for about 8 to 10 minutes, stirring occasionally. Stir in the chicken and serve. I make it in the pressure cooker, much quicker and easier. I pressure it for only 30 minutes. It can also be done in the crockpot with 3-4 cups water but someone has that book so at this time I cannot give cooking times. Good Luck! Hope you enjoy.