Step 1

Heat butter in skillet over medium heat until melted. Add onions and 1 teaspoon salt. Cook, stirring, until onions have softened, 6 to 8 minutes. Stir in caraway seeds and cook until fragrant, about 30 seconds.

Step 2

Add chicken and cook, stirring, until chicken is no longer pink, 2 to 3 minutes. Stir in cabbage and cook until wilted to about half it's volume, about 3 minutes. Stir in chicken broth, another teaspoon salt, and 1/2 teaspoon black pepper. Bring to simmer. Nestle in egg noodles, cover, and gently simmer, stirring occasionally, until noodles are cooked but still quite firm, 5 to 6 minutes.

Step 3

Remove from heat, stir in parsley, stir in sour cream (if using), season to taste and serve. Broth will thicken slightly upon resting.