Thai red curry, known as Kaeng Phet, is a popular part of Thailand's rich culinary tradition. Its characteristic flavour comes from a fragrant paste of dried red chilies, lemongrass, galangal, garlic, shallots and aromatic spices, traditionally combined with coconut milk.
This vegan version replaces the traditional shrimp paste with red miso and uses homemade curry paste for an intensely aromatic sauce.
Instead of preparing a conventional Thai curry with cubed vegetables, the butternut squash is roasted Hasselback-style and served as the centrepiece of the dish.
The result is a creative fusion of Thai-inspired flavours and a European roasting technique, rather than a traditional Thai presentation.
▣ Ingredients (2 servings)
- 1 butternut squash
- 400 ml full-fat coconut milk
- 100 ml vegetable broth
- 3-4 makrut lime leaves (kaffir lime leaves)
- 1 red bell pepper
- 1 onion
- 2 cloves garlic
- 1 tbsp brown sugar
- 1 1/2 tbsp light soy sauce
- 1 tbsp freshly squeezed lime juice
- 1 handful fresh Thai basil (Horapa)
- 100 g jasmine rice (optional)
- 1-2 tbsp homemade Thai red curry paste (prepared from the ingredients below)
- 1 tbsp homemade chili oil
- 3-4 dried red chilies
- 1 tsp coriander seeds
- 1/2 tsp cumin seeds
- 5-6 white peppercorns
- 1 stalk lemongrass
- 1 shallot
- 2 cloves garlic
- 15-20 g fresh galangal
- 2-3 coriander roots or the lower stems
- 1/4 tsp finely grated makrut lime zest
- 1/4 tsp coarse salt
- 1/4 tsp red miso paste
- to taste salt
♨ Preparation
- Prepare the Butternut Squash
Preheat the oven to 180°C conventional heat.
Peel the butternut squash, cut it in half lengthwise and remove the seeds and fibrous centre.
Place each squash half cut-side down on a chopping board.
Position two wooden sushi chopsticks alongside the squash, one on either side. Using a sharp knife, make thin, evenly spaced cuts across the squash, approximately 3–5 mm apart.
The chopsticks act as a barrier and prevent the knife from cutting all the way through the squash. - Roast the Squash
Pour the vegetable broth into a large ovenproof dish.
Place both Hasselback squash halves into the dish, cut-side down, with the slices facing upwards.
Cover loosely with foil for the first part of roasting to prevent excessive browning.
Roast for approximately 45–55 minutes, depending on the size and thickness of the squash.
About 10 minutes before the end of cooking, remove the foil and brush both squash halves with the homemade chili oil, allowing a little oil to run between the slices.
Return to the oven until the squash is golden, tender and easily pierced with a knife. Add a splash of water to the dish if the broth evaporates completely. - Prepare the Homemade Thai Red Curry Paste
Remove the stems from the dried red chilies and soak them in warm water until softened. Drain thoroughly.
For a milder paste, remove some or all of the seeds.
Lightly toast the coriander seeds, cumin seeds and white peppercorns in a dry frying pan until fragrant.
Transfer the toasted spices to a mortar and grind finely.
Add the softened chilies, lemongrass, shallot, garlic, galangal, coriander roots, makrut lime zest and coarse salt.
Pound everything into a thick, aromatic paste. Alternatively, use a small food processor, adding only a little water if necessary.
Finally, mix in the red miso paste.
Measure out 1½–2 tablespoons for the curry. Reserve any remaining paste for another recipe. - Prepare the Vegetables
Peel and finely dice the onion.
Mince the garlic cloves and cut the red bell pepper into thin strips.
Lightly tear the makrut lime leaves to release their aromatic oils. - Prepare the Curry Base
Heat a large non-stick frying pan over medium heat.
Add the diced onion with a small splash of water and sauté gently until translucent.
Add the minced garlic and continue cooking briefly until fragrant, adding another splash of water if necessary.
No additional cooking oil is required. - Add the Coconut Milk and Curry Paste
Pour the coconut milk into the pan and stir gently.
Add 1½–2 tablespoons of the homemade Thai red curry paste and whisk until fully incorporated.
Stir in the brown sugar and light soy sauce.
Add the makrut lime leaves and sliced red bell pepper.
Simmer gently over medium-low heat until the pepper softens and the sauce develops a rich, creamy consistency.
Taste and adjust the seasoning if necessary. - Finish the Curry
Remove the makrut lime leaves before serving.
If the sauce becomes too thick, loosen it with a little water or some of the remaining vegetable broth from the roasting dish.
Keep warm over very low heat without boiling vigorously. - Garnish and Serve
Carefully transfer the roasted Hasselback butternut squash halves to a large serving plate.
Spoon the creamy Thai red curry sauce generously over the squash, allowing it to flow between the individual slices.
Drizzle the freshly squeezed lime juice over the finished dish.
Garnish with fresh Thai basil and serve with additional lime wedges.
Jasmine rice can be served separately if desired, but the roasted butternut squash also makes a satisfying centrepiece on its own.
Food Story
Thailand, My Happy Place – and a Very Spicy Lesson
I’ve travelled to Thailand countless times, and I absolutely love everything about this beautiful country: the people, the culture, the atmosphere and, of course, the incredible food. Strangely enough, I can’t remember ever ordering red Thai curry in a restaurant there. But I did make it myself during a cooking class on Krabi with a very good friend. And that experience turned into one of my most unforgettable culinary adventures.
After cooking, everyone sat down to enjoy their dishes together. I skipped the rice, as usual. The sous-chef asked me several times whether I was absolutely sure, warning me that the curry was extremely spicy. I confidently told my friend in German, “Clearly, this guy has no idea how much heat I can handle!” Well, famous last words.
After my first bite, steam was practically coming out of my ears, and I was sweating from places I didn’t even know could sweat. Meanwhile, the sous-chef had hidden behind a palm tree, occasionally peeking out to watch my reaction. I suspect he enjoyed the show considerably more than I enjoyed that first bite!
Years later, I’m still firmly Team Spicy, although Thailand certainly taught me a little humility. For this Via Veggie Vegan version, I made my own red curry paste, replaced the traditional shrimp paste with red miso and gave the whole dish a Hasselback butternut makeover. Thai inspiration, a little culinary creativity and one very delicious reminder that sometimes the hottest travel memories have absolutely nothing to do with the weather.
♨ Nutrition per serving
Nutritional values are approximate and may vary depending on the ingredients and products used.
Good to Know
14. GOOD TO KNOW
The Story Behind Thai Red Curry
Thai red curry, or Kaeng Phet, is particularly associated with the culinary traditions of central Thailand. Its signature red colour comes from dried red chilies, which are pounded with fragrant ingredients such as lemongrass, galangal, garlic, shallots and coriander roots. Traditional curry pastes often contain fermented shrimp paste, which contributes savoury depth. Red miso offers a plant-based alternative in this recipe, although its flavour is not identical to the traditional ingredient.
Thai Basil – More Than Ordinary Basil
Thai basil, known as Horapa, has a distinctive aroma with subtle anise and liquorice notes. Unlike sweet Italian basil, its flavour is particularly well suited to rich coconut curries and spicy Thai dishes. Its aromatic compounds contribute a fresh contrast to creamy sauces. Thai basil is also used in several Southeast Asian cuisines, where it adds both fragrance and flavour.
Makrut Lime Leaves – The Fragrance of Thai Cuisine
Makrut lime leaves are an important aromatic ingredient in Thai cooking. Their intensely citrusy fragrance comes from natural essential oils, including citronellal. The leaves are commonly torn or lightly bruised before being added to curries and soups, allowing their aroma to infuse the dish. Because the leaves can remain tough even after cooking, they are usually removed before eating. Makrut lime leaves and ordinary lime juice are not interchangeable: the leaves provide fragrance, while the juice contributes acidity.


