Slow Cooker Sweet and Sour Cabbage Soup

Prep: 15 minCook: 8 hr4 servingsmediumAmerican
Slow Cooker Sweet and Sour Cabbage Soup

A comforting slow-cooker soup balancing sweet brown sugar and tangy balsamic vinegar with tender cabbage and tomato. The long, gentle cooking melds flavors into a deeply satisfying broth perfect for weeknight dinners or meal prep. Serve hot with a dollop of yogurt or sour cream to cool and enrich each spoonful. This version streamlines prep by using canned tomatoes and paste, making it accessible and forgiving.

Ingredients

4 servings
  • ½ green cabbage, chopped
  • 1 onion, chopped
  • 3 cup chicken broth
    vegetable broth1:1vegan

    no flavor shift

    Full guide →
  • 28 ounce canned tomato, with juices
    diced fresh tomato1.5:1seasonal

    requires extra liquid

  • 2 tablespoon brown sugar
    white sugar1:1sweet

    same effect

    Full guide →
  • 3 tablespoon balsamic vinegar
    red wine vinegar1:1sour

    slightly less complex

    Full guide →
  • ½ teaspoon salt
  • ½ teaspoon ground black pepper
  • 1 dollop yogurt(optional)
    sour cream1:1dairy

    richer taste

    Full guide →
  • 3 tablespoon tomato paste
    diced fresh tomato1.5:1seasonal

    requires extra liquid

    Full guide →

Instructions

  1. 1

    Chop onion and cabbage into bite-sized pieces.

  2. 2

    Add cabbage, onion, tomato with juices, tomato paste, balsamic vinegar, brown sugar, chicken broth, salt, and pepper to crock pot.

  3. 3

    Stir to combine.

  4. 4

    Cook on low for 8 hours until cabbage is tender.

  5. 5

    Stir and ladle into bowls.

  6. 6

    Top each serving with yogurt or sour cream if desired.

Tips

Tip 1

Chop cabbage into uniform pieces for even cooking. Smaller pieces soften faster if cooking time is limited.

Tip 2

Taste before serving; add more vinegar or sugar to shift sweet-sour balance to preference.

Tip 3

Sour cream or Greek yogurt adds richness; stir in at the table rather than before storing to preserve brightness.

Good to Know

Storage

Refrigerate in airtight container up to 4 days. Freeze up to 3 months; thaw overnight before reheating.

Make Ahead

Assemble ingredients (except yogurt) in a resealable bag the night before. Thaw in fridge, transfer to crock pot, and cook on schedule.

Serve With

Ladle hot into bowls. Serve with crusty bread, grilled cheese, or a side salad. Top with yogurt or sour cream at the table.

See pairing guide →

Common Mistakes

Watch

Skip stirring at midpoint to avoid uneven cooking of cabbage.

Watch

Avoid cooking longer than 10 hours to prevent cabbage from turning mushy and bitter.

Watch

Don't add yogurt before storing; it can separate and curdle.

Substitutions

Dairy-Free Swaps

yogurt
sour cream1:1dairy

richer taste

Full guide →

Vegan Options

chicken broth
vegetable broth1:1vegan

no flavor shift

Full guide →

General Alternatives

brown sugar
white sugar1:1sweet

same effect

Full guide →
balsamic vinegar
red wine vinegar1:1sour

slightly less complex

Full guide →
canned tomato
diced fresh tomato1.5:1seasonal

requires extra liquid

Find more substitutions →

FAQ

Can I cook this on high instead of low?

Yes. Cook on high for 4-5 hours, checking at 4 hours. Cabbage may be less tender but still edible. Low heat allows deeper flavor development.

What if I don't have balsamic vinegar?

Red wine vinegar, apple cider vinegar, or white vinegar work. Start with 2 tablespoons and taste; adjust sweetness with brown sugar as needed.

How long does this keep and can I freeze it?

Refrigerate up to 4 days in airtight containers. Freeze up to 3 months. Thaw overnight in fridge before reheating on stove or microwave.