This simple cabbage and potato soup relies on the natural sweetness of caramelized vegetables and the earthy depth of caraway seeds to create a truly comforting bowl. It is a rustic, plant-based dish that builds layers of flavor through careful sautéing and a slow simmer, resulting in a thick, velvety texture without needing any dairy or blending equipment. Perfect for chilly evenings, this soup is both nourishing and deeply satisfying.

List of ingredients

1 head small green cabbage, finely shredded
1 large yellow onion (or 1 leek), diced
1.5 lb golden potatoes, rinsed and diced into 1/2 inch cubes
5 cups vegetable stock, low sodium
1 tbsp caraway seeds
2-3 tbsp nutritional yeast
2 tsp onion powder
1 pinch red pepper flakes
8 sprigs thyme
8 sprigs fresh dill
1/3 cup onion chives, snipped
1 drizzle olive oil (or a splash of water)
6 strips smoked tempeh (optional for serving)
Sea salt and black pepper, to taste
1/4 tsp liquid smoke

step-by-step instructions

Step: Heat up your largest dutch oven or heavy stock pot over medium-low flame. Sautee the onion (or leeks) with a drizzle of olive oil or a splash of water and pinch of salt until wilted and starts to get some color (about 10 minutes).
Step: Add the red pepper flakes and caraway seeds then stir in the shredded cabbage. Sautee together until wilted and caramelized, making sure to stir often adding a splash of water in between if needed to help create some steam. It should be perfect in about 20 minutes.
Step: Add the diced potatoes, thyme, dill, onion powder, nutritional yeast, vegetable stock and liquid smoke then bring to a constant simmer. Cover with a lid and cook for 25 to 30 minutes until the potatoes are cooked through and fall part. Remove from heat and discard the thyme sprigs and dill.
Step: Use the back of a wooden spoon to mash some of the potatoes against the side of the pot. Taste and adjust seasonings sea salt and black pepper at this point.
Step: Meanwhile heat up a cast iron skillet over medium high heat and pan sear the tempeh strips until golden brown on both sides. Serve the soup garnished with fresh onion chives, red pepper flakes and crumbled with the pan seared tempeh on top.

Refining your technique

Achieving deep caramelization on the cabbage

Patience is the most important element when sautéing the cabbage. By allowing it to cook down slowly with just enough moisture to prevent burning, you unlock a natural sweetness that forms the backbone of the soup. Do not rush this stage, as the color shift from light green to a deep golden brown signals the development of complex sugars.

Creating the perfect natural soup consistency

Avoid using a blender for this recipe, as the rustic texture of the hand-mashed potatoes is what gives this dish its traditional character. By pressing only a portion of the potatoes against the pot walls, you create a creamy, starch-enriched base while leaving larger chunks of potato and cabbage intact for variety in every bite.

Customizing flavor profiles

Adding depth without meat

If you prefer to skip the tempeh, you can easily replicate the smokiness by adding a half-teaspoon of smoked paprika to the onion mixture during the sautéing process. This simple addition ensures the soup remains robust and savory. Alternatively, adding a dash of tamari or soy sauce can boost the umami profile if you feel the broth needs a stronger punch.

Substituting aromatics

While the recipe calls for yellow onion, leeks are a fantastic alternative that provides a milder, more delicate flavor. When using leeks, ensure you rinse them thoroughly in cold water to remove any trapped soil between the layers. If you are out of fresh herbs, you can substitute with dry equivalents, but use only about a third of the amount to avoid overwhelming the delicate flavor of the cabbage.

Serving and storage

Pairing with crusty sides

This soup is best served with hearty accompaniments that can soak up the flavorful broth. Consider serving it with thick slices of toasted sourdough bread or a warm, savory flatbread. A light drizzle of infused oil or a sprinkle of toasted seeds can also enhance the presentation and provide an extra layer of texture.

Managing leftovers effectively

This recipe is an excellent candidate for meal prep, as the flavors continue to marry and deepen in the refrigerator overnight. Store the soup in an airtight container for up to four days. When you are ready to enjoy it again, reheat the soup slowly on the stovetop to maintain the delicate texture of the potatoes, adding a splash of water or stock if the soup has thickened too much.

Common culinary inquiries

Can I freeze this cabbage soup?

Potatoes can sometimes change texture after being frozen and thawed, so it is generally recommended to enjoy this soup fresh or refrigerated. If you must freeze it, try to slightly undercook the potatoes initially, and reheat the soup very gently on the stove rather than using a microwave to preserve their structure.

Why is it important to use golden potatoes?

Golden potatoes hold their shape well during the long simmering process while still being soft enough to mash easily for thickening. Their naturally creamy texture is superior for this type of rustic soup compared to russet potatoes, which tend to disintegrate more quickly into the broth and lose their identity.

How do I know when the cabbage is finished?

The cabbage is ready when it has significantly reduced in volume and has achieved a soft, melt-in-the-mouth consistency. You should see a noticeable darkening in color; if the cabbage is still bright green and crunchy, it needs more time in the pot to properly release its flavor into the soup base.

What is the benefit of adding nutritional yeast?

Nutritional yeast provides a subtle, nutty, and savory note that mimics the richness often found in slow-cooked stews. It also helps to slightly thicken the liquid, contributing to the overall mouthfeel of the soup without the need for flour or cornstarch. Add it during the simmering phase to ensure it fully dissolves and integrates with the other flavors.

Is the liquid smoke essential?

The liquid smoke adds a sophisticated, hearth-cooked quality to the soup that complements the cabbage beautifully. While it is optional, it is highly recommended if you choose to omit the smoked tempeh garnish. Always start with a small amount, as it is quite potent and can easily dominate the dish if overused.

Can I use a different type of cabbage?

Green cabbage is the standard choice for this recipe due to its durability and sweetness when cooked. However, savoy cabbage is a beautiful, slightly more tender substitute that works well. Avoid using red cabbage, as it will bleed its color into the broth and turn the soup a dark, unappealing shade, though it will still taste fine.

How can I make this soup thinner?

If the soup becomes too thick after sitting, simply whisk in an extra cup of warm vegetable stock until you reach your desired consistency. Be sure to check the seasoning again after adding more liquid, as the extra volume may dilute the initial balance of salt and spices, requiring a quick adjustment to maintain the original flavor intensity.