Kohlrabi Curry (Indian Knol Khol Recipe)

Germany gets the credit for naming kohlrabi, but India has its own deep relationship with this vegetable. In South India, it’s called knol khol (from the same German-Dutch root that gave us “kohlrabi”). In North India, it’s ganth gobi — “knot cauliflower.” And across both regions, it shows up in curries, dry stir-fries, sambar, and pickles, treated as an everyday vegetable rather than the curiosity it remains in Western cooking.

Indian kohlrabi preparations tend to be spice-forward, which works beautifully with kohlrabi’s mild flavor profile. The vegetable doesn’t fight the spices. It absorbs them, softens into them, and provides a satisfying texture that holds up well whether you’re simmering it in a gravy or cooking it dry with mustard seeds and curry leaves.

Kohlrabi in Indian Cuisine

Kohlrabi grows well in India’s cooler seasons and at higher elevations. It’s particularly popular in Kashmir, Karnataka, and Tamil Nadu. In Kashmiri cooking, it appears in yogurt-based dishes with fennel and dried ginger. In South India, it goes into sambars and dry poriyal-style preparations.

The vegetable is firm enough to hold up during braising, absorbs flavors well, and cooks relatively quickly. If you’ve cooked Indian food with potatoes, turnips, or chayote, kohlrabi behaves similarly and substitutes directly.

Simple Kohlrabi Curry (Gravy Style)

This is a straightforward onion-tomato curry with kohlrabi. It works as a weeknight meal with rice or roti.

Ingredients

• 3 medium kohlrabi (about 1.5 pounds), peeled and cut into 1-inch cubes
• 1 large onion, finely diced
• 2 medium tomatoes, chopped (or 1 cup canned crushed tomatoes)
• 3 cloves garlic, minced
• 1-inch piece ginger, grated
• 2 green chilies, slit lengthwise (adjust to your heat preference)
• 2 tablespoons vegetable oil or ghee
• 1 teaspoon cumin seeds
• 1 teaspoon ground coriander
• 1/2 teaspoon turmeric
• 1/2 teaspoon red chili powder
• 1/2 teaspoon garam masala
• 1 teaspoon salt
• 1 cup water
• Fresh cilantro for garnish

Instructions

1. Heat the oil in a heavy-bottomed pan over medium heat. Add the cumin seeds. When they start to sputter (about 30 seconds), add the diced onion.

2. Cook the onion until golden brown, about 8-10 minutes. Don’t rush this step. The onions are the flavor base. Add the garlic, ginger, and green chilies. Cook for another minute until fragrant.

3. Add the tomatoes and cook until they break down and the oil starts to separate from the mixture, about 5-7 minutes. This is the masala base.

4. Add the dry spices — coriander, turmeric, and chili powder. Stir for 30 seconds to bloom the spices in the hot oil. This step is important; it removes the raw taste from ground spices.

5. Add the kohlrabi cubes. Stir to coat them with the masala. Add the water and salt. Bring to a boil, then reduce heat to low. Cover and simmer for 15-20 minutes, until the kohlrabi is fork-tender.

6. Finish. Stir in the garam masala. Taste for salt and chili. Garnish with fresh cilantro.

Serves 3-4 as a side dish with rice or roti.

Notes

• The gravy should be medium-thick, coating the kohlrabi pieces. If it’s too thin, uncover and simmer a few more minutes.
• For a richer curry, stir in 2-3 tablespoons of yogurt or coconut milk at the end.
• Kohlrabi releases some liquid as it cooks, so start with less water than you would for potatoes.

South Indian Dry Kohlrabi Curry (Poriyal Style)

This is a drier preparation — more stir-fry than curry. It’s the style you’d find in a South Indian thali alongside rice, sambar, and rasam.

Ingredients

• 3 medium kohlrabi, peeled and diced into 1/2-inch cubes
• 2 tablespoons coconut oil
• 1 teaspoon mustard seeds
• 1 teaspoon urad dal (split black gram)
• 1 dried red chili, broken in half
• 10-12 curry leaves
• 1 medium onion, thinly sliced
• 1/4 teaspoon turmeric
• Salt to taste
• 3 tablespoons fresh or frozen grated coconut

Instructions

1. Heat the coconut oil. Add mustard seeds. When they pop, add the urad dal, dried red chili, and curry leaves. Fry for 30 seconds until the dal turns golden and the curry leaves crackle.

2. Add the sliced onion and cook until softened, about 4-5 minutes.

3. Add the kohlrabi cubes and turmeric. Stir well. Add salt and 2-3 tablespoons of water. Cover and cook on low heat for 12-15 minutes, stirring occasionally, until the kohlrabi is tender.

4. Add the grated coconut. Stir through and cook uncovered for 2 minutes.

Serve as part of a rice meal. This keeps well and actually tastes better the next day once the flavors have settled.

Kohlrabi Sambar

Sambar — the tangy, spiced lentil stew — is one of the most forgiving frameworks in Indian cooking. Nearly any vegetable works in it, and kohlrabi is no exception. The vegetable holds its shape in the simmering liquid and absorbs the tamarind-lentil flavors well.

Ingredients

• 2 medium kohlrabi, peeled and cut into 1-inch pieces
• 1/2 cup toor dal (split pigeon peas), rinsed
• 1 tablespoon sambar powder (store-bought is fine)
• 1/4 teaspoon turmeric
• 1 small ball of tamarind (walnut-sized), soaked in 1/2 cup warm water, or 1 tablespoon tamarind paste
• 1 teaspoon salt
• 2 cups water (for simmering the kohlrabi)

For the tempering:

• 1 tablespoon coconut oil or vegetable oil
• 1 teaspoon mustard seeds
• 1/2 teaspoon fenugreek seeds (just a pinch — these are strong)
• 1 dried red chili
• 8-10 curry leaves
• Pinch of asafoetida (hing)

Instructions

1. Cook the dal. Boil the toor dal with turmeric in about 2 cups of water until completely soft, 20-25 minutes (or use a pressure cooker for 3-4 whistles). Mash it to a smooth consistency.

2. Cook the kohlrabi. In a separate pot, simmer the kohlrabi pieces in 2 cups of water with salt until tender, about 12-15 minutes.

3. Combine. Add the mashed dal to the kohlrabi pot. Add the sambar powder and tamarind water (squeeze out the tamarind pulp and discard the fibers, or just stir in the paste). Simmer everything together for 10 minutes.

4. Temper. In a small pan, heat the oil. Add mustard seeds. When they pop, add fenugreek seeds, dried red chili, curry leaves, and asafoetida. Pour this directly into the sambar. Stir.

5. Adjust salt and tamarind to taste. The sambar should be tangy, slightly spicy, and savory.

Serve over steamed rice.

Spice Balance Tips

Kohlrabi is mild. That’s its strength in Indian cooking — it doesn’t compete with the spices — but it also means the spice levels need to be right. Too little and the dish tastes flat. Too much and the kohlrabi disappears entirely.

Start conservative with chili. You can always add more heat. Kohlrabi’s natural sweetness pairs well with moderate spice levels, where you can taste both the vegetable and the heat.

Don’t skip the tempering. The mustard seeds, curry leaves, and dried chili fried in hot oil are doing real work. They add a layer of flavor that ground spices alone can’t replicate. This is especially true for the dry curry and sambar.

Toast your ground spices. Adding ground spices to hot oil for 30 seconds before adding liquid transforms their flavor from dusty to aromatic.

Tamarind makes a difference. A small amount provides the sour note that balances kohlrabi’s sweetness and the chili heat. It’s the element that makes everything taste complete.

Serving Suggestions

• Gravy curry — with steamed basmati rice or any flatbread (roti, naan, paratha)
• Dry poriyal — as part of a South Indian rice plate with sambar and rasam
• Sambar — over rice, with papad and pickle

All three work well as meal prep. The gravy curry and sambar improve overnight as the kohlrabi absorbs more flavor.

Why Kohlrabi Works in Indian Cooking

Kohlrabi grows in the cooler months when other vegetables are scarce, yields quickly, and doesn’t require rich soil. Its mild sweetness provides a canvas that makes spice blends taste more nuanced, and it’s firm enough to braise without falling apart.

If you already cook Indian food and haven’t tried kohlrabi, swap it into any potato curry recipe or use it in place of chayote or bottle gourd. It belongs there. For more ideas, see our best kohlrabi recipes.