Ingredients 1 1/2 cups butter 2 large onions, chopped 3 stalks celery, chopped 1 green bell pepper, seeded and chopped 1 red bell pepper, seeded and chopped 4 cloves garlic, minced 1/2 cup chopped fresh parsley 1 bunch green onions, sliced 1/4 cup all-purpose flour Click here for more ingredients and directions