Some soups are humble. They do not boast about expensive ingredients or complicated techniques. They simply deliver warmth, comfort, and honest flavor. This cabbage and onion soup is one of those soups. With just a handful of simple ingredients—cabbage, onions, broth, and a few seasonings—you can create a deeply savory, nourishing bowl that is perfect for cold days, light lunches, or anytime you need a reset. It is the kind of soup that has been simmering on stovetops for generations, proving that simple food is often the best food.
This cabbage and onion soup is naturally low in calories, packed with fiber and vitamins, and incredibly satisfying. The cabbage becomes tender and sweet as it cooks. The onions add a savory depth. A touch of garlic, thyme, and a splash of vinegar brighten the broth. It is vegetarian, easily made vegan, and works beautifully as a detox soup, a first course, or a light main meal. Serve it with a slice of crusty bread or a sprinkle of Parmesan cheese, and you have a bowl of pure comfort.
Why You Will Love This Recipe
· Only a Few Simple Ingredients: Cabbage, onions, broth, and pantry seasonings.
· One Pot, Minimal Cleanup.
· Naturally Low-Calorie and Healthy: Perfect for a light meal or detox.
· Vegetarian and Easily Vegan.
· Deeply Satisfying: The cabbage and onions create a rich, savory broth.
· Budget-Friendly: Cabbage and onions cost very little.
· Great for Meal Prep: Tastes even better the next day.
· Freezer-Friendly.
Ingredients List
· 2 tablespoons olive oil or unsalted butter
· 2 large yellow onions, thinly sliced
· 3 cloves garlic, minced
· 1 medium head green cabbage (about 2 lbs), cored and chopped into 1-inch pieces
· 6 cups low-sodium vegetable broth or chicken broth
· 1 bay leaf
· 1 teaspoon dried thyme (or 3 sprigs fresh)
· 1 teaspoon kosher salt
· ½ teaspoon black pepper
· 1 tablespoon apple cider vinegar or fresh lemon juice (for brightness)
· Optional: ¼ teaspoon red pepper flakes (for heat)
· Fresh parsley for garnish
Step-by-Step Instructions
Step 1: Sauté the Onions
Heat the olive oil in a large Dutch oven or heavy-bottomed pot over medium heat. Add the sliced onions and cook for 8-10 minutes, stirring occasionally, until the onions are soft, translucent, and starting to caramelize (lightly browned). Do not rush this step; caramelizing the onions adds deep, sweet flavor.
Step 2: Add the Garlic
Add the minced garlic and cook for 60 seconds until fragrant.
Step 3: Add the Cabbage
Add the chopped cabbage to the pot. It will seem like a huge amount, but it will wilt down significantly. Stir to coat the cabbage in the oil and onions. Cook for 5-6 minutes, stirring occasionally, until the cabbage begins to soften.
Step 4: Add the Broth and Seasonings
Pour in the vegetable broth. Add the bay leaf, thyme, salt, pepper, and red pepper flakes (if using). Stir to combine.
Step 5: Simmer
Bring the soup to a boil, then reduce the heat to low. Cover and simmer for 20-25 minutes, until the cabbage is very tender.
Step 6: Add the Vinegar
Remove the bay leaf. Stir in the apple cider vinegar or lemon juice. The acid brightens the soup and balances the sweetness of the onions and cabbage.
Step 7: Serve
Taste and add more salt, pepper, or vinegar if needed. Ladle into bowls. Garnish with fresh parsley. Serve hot.
Cooking Tips and Pro Tips for Best Results
· Caramelize the onions properly: The onions are the flavor base of this soup. Cooking them slowly until they are soft and golden adds natural sweetness and depth. Do not rush this step.
· Use a large pot: The cabbage starts with a large volume but wilts significantly. A 5-6 quart Dutch oven or stockpot is ideal.
· Do not overcook the cabbage: Cabbage is ready when it is tender but still has a little texture. Overcooking can make it mushy and develop a sulfurous smell. 20-25 minutes is sufficient.
· Add vinegar or lemon juice at the end: A splash of acid brightens the soup and balances the sweetness. Do not skip this step.
· Make it heartier: Add a can of cannellini beans, diced potatoes, or cooked sausage to turn this into a more substantial meal.
· For a creamier soup: Use an immersion blender to puree half of the soup, then stir it back in. This creates a creamy texture without adding dairy.
Variations and Substitutions
French Onion Cabbage Soup:
Add 1 tablespoon of balsamic vinegar and 1 teaspoon of fresh thyme. Top each bowl with a slice of toasted baguette and a pile of grated Gruyère or Swiss cheese. Broil until bubbly and golden. This is a cabbage twist on classic French onion soup.
Beef and Cabbage Soup:
Substitute the vegetable broth with beef broth. Add ½ lb of ground beef or thinly sliced beef chuck, browned first. The beef adds richness and protein.
Tomato Cabbage Soup:
Add 1 can (15 oz) of diced tomatoes (undrained) along with the broth. Add 2 tablespoons of tomato paste for extra depth. The tomatoes add acidity and a beautiful red color.
Spicy Cabbage and Sausage Soup:
Add 1 lb of smoked sausage (kielbasa or andouille), sliced into rounds. Brown the sausage in the pot before sautéing the onions. Add ½ teaspoon of cayenne pepper and 1 diced jalapeño.
Cabbage and Caraway Soup:
Add 1 tablespoon of caraway seeds along with the onions. Caraway has a rye-bread flavor that pairs beautifully with cabbage. This is a nod to German and Eastern European cooking.
Creamy Cabbage and Onion Soup:
Stir in ½ cup of heavy cream, half-and-half, or 4 oz of softened cream cheese during the last 5 minutes of cooking. Do not boil after adding dairy.
Serving Suggestions
This cabbage and onion soup is versatile. Serve it:
· As a Light Lunch or Dinner: With a slice of crusty bread and a sprinkle of Parmesan cheese.
· As a First Course: Before a roast chicken, steak, or pork chop.
· With a Grilled Cheese Sandwich: The classic tomato soup pairing, but even better with this savory cabbage soup.
· With a Dollop of Sour Cream or Greek Yogurt: Adds tangy creaminess.
· Topped with Croutons or Crushed Crackers: For crunch.
Pair with:
· Crusty sourdough or rye bread
· Buttermilk biscuits
· A simple green salad
Storage and Reheating Instructions
Refrigerator:
Store leftovers in an airtight container for up to 5 days. The flavors deepen significantly overnight.
Freezer:
Freeze in freezer-safe containers for up to 3 months. Thaw overnight in the refrigerator before reheating.
Reheating:
· Stovetop (Best): Transfer to a saucepan and reheat over medium-low heat for 8-10 minutes.
· Microwave: Heat individual portions covered for 90 seconds, stir, then heat for another 60 seconds.
Nutritional Information (Approximate, per serving – serves 6)
· Calories: 120
· Protein: 3g
· Fat: 5g
· Saturated Fat: 1g
· Carbohydrates: 18g
· Fiber: 5g
· Sugar: 9g
· Sodium: 580mg
· Vitamin C: 70% Daily Value
· Calcium: 8% Daily Value
· Iron: 8% Daily Value
Frequently Asked Questions (FAQ)
1. Can I use red cabbage instead of green?
Yes. Red cabbage will turn the soup a deep purple color. It has a slightly more peppery, earthy flavor and takes a few extra minutes to soften. The cooking time remains roughly the same.
2. Can I make this soup in a slow cooker?
Yes. Sauté the onions and garlic on the stovetop first, then transfer them to a slow cooker. Add the cabbage, broth, and seasonings. Cook on low for 4-5 hours or on high for 2-3 hours. Stir in the vinegar at the end.
3. How do I make this soup more filling?
Add a can of drained cannellini beans, chickpeas, or diced potatoes. Add cooked lentils, ground beef, or shredded chicken. Serve over rice or with a side of crusty bread. Each of these additions turns the soup into a heartier main course.
4. Is this soup good for detox or weight loss?
Yes. Cabbage soup has long been associated with cleansing diets. This version is low in calories, high in fiber, and packed with vitamins. It is filling without being heavy. For a detox-friendly version, omit the oil and use water or broth for sautéing.
5. Why is my cabbage soup bitter?
Bitterness can come from overcooking the cabbage or from using older cabbage. To avoid bitterness, do not cook the cabbage for more than 25 minutes. Use fresh cabbage. Adding a pinch of sugar (1 teaspoon) or a splash of apple cider vinegar can balance bitterness.
6. Can I add potatoes to this soup?
Yes. Add 2 cups of peeled and diced Yukon Gold or red potatoes along with the cabbage. The potatoes add heartiness and make the soup more substantial. If adding potatoes, reduce the salt slightly, as potatoes absorb salt.