The long cooking time and use of homemade chicken broth is what makes this split-pea soup so flavorful. This recipe is the result of much experimentation and years of trying to fix my mom's recipe for split pea soup! Sometimes, instead of simmering this on the stove I'll let it simmer in a Crockpot all day long. Putting some of this soup in a thermos makes the perfect lunch in between classes or at work; you don't even realize you're eating a lot of vegetables and the split peas make it high in fiber. A very nutritious choice!