Canh Mướp Tôm Khô
Canh Mướp Tôm Khô·(kahn moop tohm kho)
Bữa Cơm Gia Đình: The Weeknight Table
For first-generation kids growing up in the States, this soup is the taste of a sweltering summer evening. It is the quintessential Vietnamese palate cleanser—vibrantly green, cooling, and deeply sweet. When diaspora cooks try to recreate it, they often find the broth lacking depth or the dried shrimp stubbornly rubbery, leading them to cheat with boxed stock. The grandmother's secret is mechanical, not chemical: a quick bruising in a mortar and pestle. Pounding the rehydrated shrimp instantly unlocks its concentrated umami, coaxing a rich seafood broth out of plain water in under ten minutes.
Before you start
Hydrate the dried shrimp.
Place the dried shrimp in a small bowl, cover with warm water, and let soak for 15 to 20 minutes until softened. Drain well before using.
Ingredients
- medium dried shrimp1/2 cup
- medium sponge gourds2 large
- neutral cooking oil1 tbsp
- shallot1 large
- water4 1/2 cup
- fish sauce1 tbsp
- chicken or mushroom bouillon powder1 tsp
- sugar1/2 tsp
- kosher salt1/4 tsp
- green onions2 large
- ground black pepper1/4 tsp
Method
- 01
Pound the dried shrimp.
Transfer the soaked and drained shrimp to a mortar and pestle. Pound gently just until the shrimp are flattened and the fibers begin to separate. Do not pulverize into a paste. If you lack a mortar, smash them on a cutting board with the flat side of a chef's knife.
- 02
Sauté the aromatics.
Place a medium soup pot over medium heat and pour in the oil. Once shimmering, add the minced shallot and sauté for about 30 seconds until fragrant.
- 03
Toast the shrimp.
Add the pounded shrimp to the pot. Sauté for 2 to 3 minutes until the shrimp becomes highly aromatic and slightly firm. This crucial step toasts the shrimp and eliminates any fishy odors.
- 04
Extract the broth.
Pour the water into the pot and bring to a rolling boil over high heat. Reduce the heat to medium-low and simmer uncovered for 5 to 7 minutes. Watch as the plain water turns slightly cloudy and takes on a golden, rich hue from the sweet umami of the shrimp.
- 05
Season the soup.
Stir in the fish sauce, bouillon powder, sugar, and salt. Taste the broth; it should be deeply savory and slightly sweet. Adjust with a few more drops of fish sauce if needed.
- 06
Cook the gourd.
Increase the heat slightly to bring the broth back to a strong simmer, then drop in the sliced sponge gourd. Stir gently and cook for exactly 3 to 4 minutes. The moment the white flesh turns slightly translucent but the edges remain vibrantly green, remove the pot from the heat. Residual heat will finish the cooking.
- 07
Garnish and serve.
Stir in the chopped green onions and black pepper. Ladle into a large communal bowl and serve immediately alongside a savory braised meat and steamed jasmine rice.
Notes
Peel with a light hand.
If you peel too deep into the white flesh of the sponge gourd, it will lose its crispness and turn to mush in the soup.
Sourcing substitutions.
If you cannot find mướp hương (smooth luffa) or mướp khía (angled luffa) at your local Asian market, chayote squash or zucchini will work in a pinch, though they lack the signature pandan-like fragrance.