To prepare a split pea soupvegan soups recipe, you'll need: Split Peas: Peel and cut the split-pea halves in half. Cut the hulls off the white part of each half, and remove the seeds. Add the chopped onion, carrots, celery, garlic, salt and pepper to taste. Cook on medium-high heat until the onions are translucent, about 5 minutes. Stir in the vegetable broth. Bring to boil, then reduce the heat to medium and simmer for 30 minutes, stirring occasionally. Remove the pan from heat and stir in 1/2 cup chopped parsley. Serve with sour cream or guacamole, if desired.