Oseng genjer pedas served as a traditional Indonesian stir-fried vegetable dish.

Oseng Genjer Pedas: Surprisingly Addictive Traditional Indonesian Dish

Oseng Genjer Pedas is a bold, fiery Javanese stir-fry made with water spinach-like genjer leaves, aromatic spices, and chili. Discover its story, ingredients, and how to make this surprisingly addictive traditional dish at home

About the Dish

Oseng Genjer Pedas is a humble yet deeply flavorful home-cooked dish from Javanese culinary tradition. It features genjer (an aquatic plant that grows naturally in rice paddies and shallow waters) stir-fried with a bold, spicy spice paste. Genjer has a tender-crisp texture and a mild bitterness that, when balanced with savory and spicy seasonings, transforms into something truly memorable.

Historically, genjer was considered a poor man’s vegetable, widely available, inexpensive, and easy to forage. Today, it has become harder to find in urban markets, giving this dish a nostalgic, heritage quality that many Indonesians hold close to their hearts. Cooked quickly over medium heat to preserve its color and texture, Oseng Genjer Pedas is typically served alongside warm steamed rice, fried tempeh, or tofu, a simple, satisfying everyday meal.

If you enjoy exploring Indonesian cuisine beyond the well-known classics, this dish is a wonderful place to start. If you enjoy bold, rustic stir-fries like this one, you might also love our recipe for Tumis Daun Singkong — Indonesian Cassava Leaf Stir-Fry. 

Key Ingredients and Their Role

Fresh genjer leaves prepared for cooking oseng genjer.
Fresh genjer leaves ready to be stir-fried into oseng genjer.
Fresh red chilies for spicy oseng genjer seasoning.
Fresh chilies bring spicy flavor to authentic oseng genjer.
Traditional shrimp paste ingredient for savory oseng genjer.
Shrimp paste gives oseng genjer its deep savory taste.

Genjer is the star of this dish. Its slightly bitter flavor and tender-crisp texture make it ideal for quick stir-frying. The bitterness softens beautifully when cooked with spicy and savory seasonings.

Bird’s eye chili (cabai rawit) and curly chili (cabai keriting) work together to create a layered heat, the rawit brings sharp, intense spiciness while the keriting adds depth and a mild smoky warmth.

Shrimp paste (terasi), though optional, is a flavor backbone in many Javanese stir-fries. Just a small amount adds a savory, umami-rich depth that makes the dish taste complex without being heavy.

Ingredients

Main Ingredients

  • 5 bunches of genjer
  • Cooking oil, as needed
  • Salt, sugar, seasoning powder, and ground pepper, to taste

Spice Paste (Bumbu Halus)

  • ½ finger of kencur (lesser galangal), optional
  • 2 cloves garlic
  • 3 shallots
  • 6 bird’s eye chilies (cabai rawit)
  • 3 curly chilies (cabai keriting)
  • 1 small block of shrimp paste (terasi), optional
  • A little water to help blend

Instructions

Spicy oseng genjer served on a white plate.
Delicious spicy oseng genjer with rich Indonesian flavors.
  1. Trim and discard the root ends of the genjer, then rinse thoroughly under running water. Drain and set aside.
  2. Blend or grind the kencur, garlic, shallots, bird’s eye chilies, curly chilies, and shrimp paste into a smooth paste. Add a splash of water to help the blending process.
  3. Heat a generous amount of oil in a wok or pan over medium heat.
  4. Sauté the spice paste until fragrant and slightly darkened in color — this is the sign that your stir-fry base is properly cooked.
  5. Add the genjer to the pan and toss well until the leaves are evenly coated with the spice paste and begin to wilt.
  6. Season with salt, sugar, seasoning powder, and ground pepper to taste.
  7. Continue cooking until the genjer is fully cooked but still retains a pleasant bite. Remove from heat and serve immediately while warm.

Serving Suggestion

Oseng Genjer Pedas is best enjoyed with a bowl of warm steamed rice. For a complete meal, pair it with fried tempeh or tofu on the side. A light clear broth or vegetable soup makes a great addition to balance the heat and round out the flavors of the table.

Food Is the Best Way to Learn a Culture

Oseng Genjer Pedas is more than just a stir-fry — it’s a quiet story of Indonesian heritage on a plate. Whether you’re an adventurous home cook or someone rediscovering the flavors of traditional Javanese cooking, this dish is well worth making.

Curious to learn more about the culture and language behind dishes like this? BASANTARA offers engaging Indonesian language programs designed specifically for foreigners who want to connect more deeply with Indonesia — its people, its food, and its stories. Reach out via WhatsApp at +62 852 1396 8601 or visit basantara.net to explore the programs available for you.

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