Worked out from this recipe's ingredients. If you're cooking for an allergy, always read the full ingredient list.
A saigon-style noodle soup where a homemade lemongrass, chili and peanut satay paste does all the heavy lifting. You bloom the paste in oil until it smells like toasted nuts and citrus, then stir it into a quick beef broth so a 45-minute weeknight bowl tastes like it simmered all afternoon. Thin-sliced sirloin cooks in the hot broth right in the bowl, and the whole thing gets finished with cucumber, herbs and crushed peanuts.
Freeze the beef for 20 to 30 minutes until firm at the edges, then slice it across the grain as thinly as you can manage, about 1/8 inch. Toss the slices with 1 teaspoon cornstarch, 1 teaspoon soy sauce and the sesame oil, cover, and refrigerate until serving.
Make the satay base: thinly slice the lemongrass, then pulse it in a food processor with the garlic, shallots and chopped ginger until finely minced, scraping the bowl once or twice. (By hand, mince everything as finely as possible — the paste should look like wet sand.)
Heat 1/3 cup neutral oil in a small saucepan over medium heat. Add the lemongrass mixture and cook, stirring often, for 8 to 10 minutes, until the moisture cooks off and the aromatics turn pale golden and fragrant. Do not let them brown hard or the paste will taste bitter.
Reduce the heat to low. Stir in the chili flakes, cayenne, curry powder and paprika and cook 60 to 90 seconds, just until the oil turns deep red and smells toasty. Add the chopped peanuts, sesame seeds, 1 tablespoon fish sauce and the granulated sugar, stir 1 minute more, then remove from the heat. You should have about 1 cup of satay paste. Set aside.
Start the broth: heat 1 tablespoon oil in a large pot over medium-high. Place the onion halves and ginger cut side down and char undisturbed for 4 to 5 minutes, until deeply browned in spots.
Add the beef broth, star anise and cinnamon stick. Bring to a boil, then reduce to a bare simmer and cook, partly covered, for 20 minutes to draw out the spice.
Fish out and discard the star anise and cinnamon (leave the onion and ginger or remove them, as you like). Whisk in the peanut butter until smooth, then stir in 5 to 6 tablespoons of the satay paste, the 2 tablespoons fish sauce, soy sauce, palm sugar and 1 teaspoon salt. Add the tomato wedges and simmer 5 minutes. Taste and adjust: it should be savory, gently sweet, nutty and warmly spicy. Keep at a strong simmer, about 200°F.
While the broth simmers, cook the rice noodles in a separate large pot of boiling unsalted water according to the package directions, usually 5 to 7 minutes, until fully tender but not mushy. Drain and rinse briefly under warm water to stop the cooking, then divide among four large bowls.
Bring the broth to a full rolling boil. Add half the sliced beef, stir to separate, and cook just 30 to 45 seconds until barely pink; lift it out with a spider or slotted spoon and drape over two bowls of noodles. Repeat with the remaining beef.
Ladle about 2 cups of boiling broth into each bowl, including a couple of tomato wedges. Top with bean sprouts, cucumber matchsticks, Thai basil, scallions, crushed peanuts and cilantro. Serve with lime wedges and the remaining satay paste on the table so everyone can dial up the heat.
Chef's tips
The satay paste keeps 3 weeks in the fridge under a thin film of its own oil, or 3 months frozen in an ice cube tray. Make a double batch — it is excellent on grilled meat, fried rice and instant noodles.
Bloom the spices over low heat only. Chili flakes scorch in seconds at high heat, and burnt chili will make the whole pot taste acrid.
If your knife skills aren't up to paper-thin beef, ask the butcher for shabu-shabu or hot-pot sliced beef, or use thin-sliced ribeye from a Korean market and skip the freezer step.
Cook the noodles in separate water, never in the broth — the starch they release will cloud and thicken your soup.
No time for slicing beef? Swap in 1 pound of peeled shrimp or thin-sliced pork shoulder, or make it vegetarian with mushroom broth, fried tofu and soy sauce in place of the fish sauce.
Nutrition (per serving, estimated)
1180calories
52gprotein
118gcarbs
59gfat
Estimates only — values vary with brands and portions.
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