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
- ½ green cabbage, chopped
- 1 onion, chopped
- 3 cup chicken broth
- 28 ounce canned tomato, with juicesdiced fresh tomato1.5:1seasonal
requires extra liquid
- 2 tablespoon brown sugar
- 3 tablespoon balsamic vinegar
- ½ teaspoon salt
- ½ teaspoon ground black pepper
- 1 dollop yogurt(optional)
- 3 tablespoon tomato paste
Instructions
- 1
Chop onion and cabbage into bite-sized pieces.
- 2
Add cabbage, onion, tomato with juices, tomato paste, balsamic vinegar, brown sugar, chicken broth, salt, and pepper to crock pot.
- 3
Stir to combine.
- 4
Cook on low for 8 hours until cabbage is tender.
- 5
Stir and ladle into bowls.
- 6
Top each serving with yogurt or sour cream if desired.
Tips
Chop cabbage into uniform pieces for even cooking. Smaller pieces soften faster if cooking time is limited.
Taste before serving; add more vinegar or sugar to shift sweet-sour balance to preference.
Sour cream or Greek yogurt adds richness; stir in at the table rather than before storing to preserve brightness.
Good to Know
Refrigerate in airtight container up to 4 days. Freeze up to 3 months; thaw overnight before reheating.
Assemble ingredients (except yogurt) in a resealable bag the night before. Thaw in fridge, transfer to crock pot, and cook on schedule.
Ladle hot into bowls. Serve with crusty bread, grilled cheese, or a side salad. Top with yogurt or sour cream at the table.
Common Mistakes
Skip stirring at midpoint to avoid uneven cooking of cabbage.
Avoid cooking longer than 10 hours to prevent cabbage from turning mushy and bitter.
Don't add yogurt before storing; it can separate and curdle.
Substitutions
Dairy-Free Swaps
Vegan Options
General Alternatives
requires extra liquid
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.