Rawon

The dark color and deep flavor of rawon come from the Maillard reaction and oxidation compounds in fermented keluak seeds. During the weeks-long fermentation process, the seeds develop melanoidins and other complex flavor compounds similar to those found in fermented black garlic or soy sauce. These molecules are heat-stable, so they survive the long simmer and infuse the broth with a savory, nutty quality that no combination of other spices can replicate.

Frying the spice paste before adding it to the broth is a standard technique across Indonesian cooking, and it matters here. Raw spice pastes taste sharp and one-dimensional. Frying drives off moisture, concentrates flavors, and triggers browning reactions in the shallots, garlic, and candlenuts. The oil also acts as a solvent for fat-soluble flavor compounds in the turmeric, ginger, and galangal, carrying them more efficiently into the broth.

The combination of galangal in the paste and galangal as a whole bruised piece in the broth creates two layers of the same flavor at different intensities. The blended galangal dissolves into the base, providing a persistent background warmth. The bruised piece releases its oils more slowly over the long simmer, adding a brighter, more resinous top note that keeps the soup from tasting flat.

Skimming the broth in the early stages removes proteins and impurities that would otherwise cloud the soup and contribute off-flavors. While rawon is not a clear broth in the way that Pho Bo demands transparency, a well-skimmed rawon has a cleaner, more focused flavor.

Keluak: There is no true substitute for keluak, as its flavor and color are unique. If completely unavailable, some cooks use a combination of 15 ml dark soy sauce and 10 g black sesame paste to approximate the color, though the flavor will be noticeably different. The soup will still be good, but it will not be rawon in the traditional sense.

Beef cut: Brisket is traditional because it becomes tender while retaining structure over a long simmer. Beef shank, chuck, or short ribs all work well. Shank adds gelatin to the broth, giving it a richer body. Oxtail makes a luxurious variation but requires closer to 3 hours of simmering.

Lesser galangal (kencur): Substitute with an equal amount of fresh ginger or 3 g (1/2 tsp) of kencur powder if fresh is unavailable.

Candlenuts: Replace with an equal number of raw macadamia nuts or raw cashews.

Pressure cooker method: After frying the spice paste and combining everything in the pressure cooker, cook on high pressure for 45 minutes with natural release. The beef will be tender and the broth deeply flavored.

Slow cooker method: Brown the beef and fry the spice paste on the stove, then transfer everything to a slow cooker with the remaining ingredients. Cook on low for 6 to 8 hours or on high for 3 to 4 hours.

Richer broth: Some East Javanese cooks add 2 to 3 tablespoons of coconut cream in the last 10 minutes of cooking for a slightly richer, more rounded broth. This is not traditional in all versions but is a common regional variation.

Vegetarian version: Replace the beef with firm tofu and tempeh chunks, use mushroom stock in place of water, and omit the shrimp paste. The keluak still provides remarkable depth even without meat.

Rawon is always served with steamed white rice. The dark broth spooned over plain rice is one of the great pleasures of Indonesian cooking, the rice absorbing the rich, nutty liquid like a sponge. Bean sprouts are not optional; their fresh crunch and mild sweetness provide essential contrast to the deep, heavy broth. Salted duck egg adds a creamy, briny richness that pairs naturally with the earthy keluak. Fried shallots bring sweetness and crunch. A squeeze of lime at the table brightens everything.

Beyond the traditional garnishes, rawon pairs well with the same accompaniments you would find at a Surabaya warung: sambal terasi for heat, kerupuk for crunch, and sliced fresh chilies for those who want more fire. Nasi Uduk makes a fine substitute for plain rice, its coconut fragrance complementing the earthy broth. For a larger spread, serve rawon alongside Sayur Asem, the sour tamarind vegetable soup, for a contrast of light and dark. It belongs on the same table as Bak Kut Teh, the peppery pork rib broth from the Hokkien tradition, both being deeply spiced, slow-simmered meat soups that reward patience and time.

Broth and beef: Store in an airtight container in the refrigerator for up to 4 days. Rawon improves significantly after a night in the refrigerator as the flavors continue to meld and deepen. Reheat gently on the stove over medium-low heat until the broth simmers and the beef is warmed through. Avoid boiling vigorously, which can break down the beef further than intended.

Freezing: The soup (broth and beef together) freezes well for up to 3 months. Cool completely before transferring to freezer-safe containers, leaving 2 cm of headspace for expansion. Thaw overnight in the refrigerator and reheat on the stove.

Garnishes: Prepare bean sprouts, salted eggs, and fried shallots fresh each time you serve. Blanched bean sprouts turn limp within hours. Fried shallots can be stored in an airtight container at room temperature for up to 3 days but will lose crispness; a brief toss in a dry pan restores some crunch.

Rice: Store and reheat rice separately. Leftover rice keeps in the refrigerator for up to 2 days. Sprinkle with a little water, cover, and microwave in 30-second intervals, or steam for 5 minutes.

Batch cooking: Rawon is an ideal make-ahead dish. Double the recipe and freeze half. The flavor only improves with time.