I like to cook my chicken breasts in the crockpot. They are tender,..juicy,... and make good broth for the noodles. Just salt and pepper, put in crockpot with about 1/2 cup water and cook all day on low (about 8 hours).
When chicken is done, pull meat off the bone, and set aside. Then using a strainer, strain the broth and place in a large pot. At this point, I usually add at least 2 or 3 cans of chicken broth (or 1 box), but have another on hand in case you need it.
For the noodles, mix the 2 cups of flour, 2 eggs, and enough milk to make a stiff dough (start with just a few tablespoons of milk, and add as needed). If it is too sticky, add more flour. Roll the dough out on a floured surface. Make sure there is plenty of flour on the underside, and continue to add flour to the top as needed. (I lift the dough every now and then and sprinkle more flour underneath. The noodles tend to absorb the flour as you roll and if you're not careful, the dough will stick to your surface) Roll about as thin as a pie crust, and cut into noodles. If you're not in a hurry... it's nice to let the noodles sit and dry for awhile, but this is not necessary.
Bring the chicken broth to a boil, and add the noodles a few at a time. Cook for about 10 minutes, then add chicken, salt, pepper, and turn the burner off and let the chicken and noodles sit for about 30 minutes. This allows the juice to thicken, and the noodles will absorb the necessary liquid. At this point, you may or may not need to add more broth. If there are leftovers, they can be reheated at a later date but may need more broth to thin them down as they tend to get thick overnight in the refrigerator.