Sopa de Fideo (soupe mexicaine aux vermicelles et à la tomate)
Sopa de fideo is the tomato noodle soup of Mexican home kitchens: thin wheat noodles toasted in oil until nutty and golden, then simmered in a smooth, garlicky tomato broth until silky and just tender. Toasting the dry fideo first is what separates the real thing from plain noodle soup — it keeps the strands from turning mushy and gives the broth a deep, roasty backbone. The whole pot comes together in about 35 minutes with pantry staples, which is exactly why it is the weeknight comfort food generations of Mexican kids grew up on.
Blend 450 g quartered Roma tomatoes with 1/4 white onion, 2 garlic cloves, 1 tbsp tomato paste, 1 tsp salt, and 1 cup of broth until completely smooth. Heat 3 tbsp oil in a large pot over medium and toast 200 g fideo noodles, stirring constantly, until most strands are deep golden, 4-6 minutes. Pour in the tomato puree (it will sputter) and fry it, stirring, until it thickens and turns brick red, 3-4 minutes, then add the remaining 5 cups of broth plus a pinch of cumin and oregano. Bring to a boil, lower to a simmer, and cook uncovered 8-10 minutes until the noodles are tender. Season with salt and a squeeze of lime, and serve right away with cilantro, avocado, and crumbled queso fresco.
- Toast the fideo until deep golden, not pale blond — the browning is where most of the soup's flavor comes from, but it burns fast, so stir constantly.
- Fry the tomato puree until it darkens to brick red before adding broth; this cooks off the raw tomato edge and concentrates the base.
- Serve immediately and store noodles and broth knowing they merge: leftovers thicken, so thin with fresh broth when reheating.
Equipment
- Blender
- Large pot or Dutch oven (4 qt / 4 L or larger)
- Wooden spoon or silicone spatula
- Chef's knife
- Cutting board
- Ladle
Ingrédients
Soup
- 200 g fideo noodles, or angel hair/vermicelli nests broken into 2.5 cm / 1-inch pieces
- 450 g Roma tomatoes, cored and quartered
- white onion, roughly chopped
- garlic cloves, peeled
- 15 g tomato paste, optional, for deeper color and body
- 45 ml neutral oil, such as canola, avocado, or vegetable oil
- 1.5 L chicken broth, low-sodium preferred, divided; use vegetable broth for a meat-free pot
- 6 g fine salt, plus more to taste
- 1.25 ml ground cumin, optional
- 2.5 ml Mexican oregano, optional, crumbled between your fingers
To Serve
- lime, cut into wedges
- 10 g fresh cilantro, leaves and tender stems
- avocado, diced; optional
- 60 g queso fresco, optional; omit for dairy-free
Préparation
- ÉTAPE01
Put the quartered tomatoes, onion, garlic, tomato paste, salt, and 240 ml (1 cup) of the broth in a blender. Puree on high until completely smooth, about 1 minute — there should be no flecks of skin. Set the pitcher next to the stove so it is ready the moment the noodles are toasted.
- ÉTAPE02
Heat the oil in a large pot or Dutch oven over medium heat until it shimmers. Add the fideo and stir constantly, scraping the bottom, until most of the strands turn a deep golden brown, 4-6 minutes. They shift from golden to scorched quickly at the end, so do not walk away — a few pale strands are fine, blackened ones are not.
- ÉTAPE03
Pour the tomato puree over the noodles all at once and stand back — it will sputter hard for a few seconds. Stir to coat the noodles and cook, stirring often, until the puree thickens slightly, smells sweet rather than raw, and darkens to brick red, 3-4 minutes.
- ÉTAPE04
Stir in the remaining 1.25 liters (5 cups) of broth along with the cumin and oregano, if using. Scrape up anything stuck to the bottom of the pot, raise the heat to high, and bring the soup to a boil.
- ÉTAPE05
Reduce the heat to maintain a gentle simmer and cook uncovered, stirring every couple of minutes so the noodles do not clump or stick, until they are tender but not mushy, 8-10 minutes. The broth should stay brothy — if it tightens up more than you like, splash in extra hot broth or water.
- ÉTAPE06
Turn off the heat. Taste the broth and add salt a pinch at a time until the tomato flavor pops; a small squeeze of lime right into the pot brightens everything. If you used regular (not low-sodium) broth you may need no additional salt at all.
- ÉTAPE07
Ladle the sopa de fideo into deep bowls and top with chopped cilantro, diced avocado, and crumbled queso fresco, with lime wedges alongside. Serve right away — the noodles keep drinking up broth as the pot sits.
Make ahead
The blended, fried tomato base is the make-ahead move: cook it through step 3 without the noodles (fry the puree in 1 tablespoon of oil on its own), then refrigerate up to 4 days or freeze up to 3 months. At dinnertime, toast the fideo in the remaining oil, add the base and broth, and simmer 8-10 minutes. Avoid holding the finished soup on the stove for more than 15-20 minutes, since the noodles soften and swell the longer they sit in hot broth.
Storage
Cool leftovers quickly and refrigerate in an airtight container for up to 3 days. The noodles will absorb most of the broth as they sit, turning the soup almost stew-like; reheat gently on the stovetop with a splash of broth or water to loosen it back up, and re-season with salt and lime. Freezing is not recommended once the noodles are in — they turn mushy — but the fried tomato base alone freezes well for up to 3 months.
Variations
Sopa de Fideo con Pollo
Turn it into a full meal by stirring in 2 cups (about 250 g) of shredded cooked chicken during the last 3 minutes of simmering. Using the poaching liquid from the chicken as part of the broth makes the bowl even richer, and a handful of frozen peas or diced carrots added with the broth is a common family touch.
Vegan Sopa de Fideo
Swap the chicken broth for a good vegetable broth and skip the queso fresco, finishing bowls with avocado, cilantro, and lime instead. To replace the savoriness the chicken broth provides, fry the tomato puree an extra minute and add 1/2 teaspoon of smoked paprika or a small piece of seeded guajillo chile to the blender.
Fideo Seco (Dry-Style)
For the drier, saucier cousin served as a side dish in central Mexico, cut the broth down to 500 ml (2 cups). After adding it, cover the pot and simmer on low until the liquid is fully absorbed, about 10 minutes, then rest 5 minutes off heat. Serve topped with crema, queso fresco, and sliced avocado like a noodle version of arroz rojo.
Serve with
Nutrition per serving
Nutrition values are estimates based on the metric measurements. Adjust as needed.
Questions fréquentes
What exactly is fideo, and where do I buy it?
Fideo is a very thin wheat noodle, similar to vermicelli or angel hair, sold pre-cut into short pieces or coiled into small nests. In the US you will find bags of it in the Latin foods aisle of most supermarkets (La Moderna and Barilla both make it) for about a dollar. If you cannot find it, break angel hair or thin spaghetti into 2.5 cm / 1-inch pieces inside a zip-top bag — it behaves the same way in the pot.
Why do you toast the fideo before adding liquid?
Toasting the dry noodles in oil does two jobs. Browning creates nutty, roasty flavors that season the entire broth — untoasted fideo tastes flat and one-note by comparison. It also firms up the surface starch of the noodles so they hold their shape through simmering instead of dissolving into mush. Medium heat and constant stirring are all it takes; pull the pot off the burner if they darken too fast.
Can I make sopa de fideo without a blender?
Yes. Replace the fresh tomatoes, onion, and garlic with one 400 g (14.5 oz) can of crushed tomatoes or tomato sauce plus 1/2 teaspoon each of onion powder and garlic powder, and fry that in place of the puree in step 3. The soup loses a little freshness but the method — toast the fideo, fry the tomato, simmer in broth — stays exactly the same.
My noodles soaked up all the broth. Did I do something wrong?
No — that is just what fideo does over time, since thin noodles keep absorbing liquid after cooking. Serve the soup as soon as the noodles are tender, and if the pot has to wait, keep it off the heat and stir in a cup of hot broth right before ladling. For leftovers, expect a thick, almost pasta-like texture and loosen it with broth or water when you reheat.
Is there a gluten-free way to make this fideo soup?
Traditional fideo is wheat pasta, so the classic version contains gluten, but the soup adapts well. Use a thin gluten-free spaghetti (corn- or rice-based) broken into short pieces, and toast it more gently — gluten-free pasta browns and burns faster than wheat. Add it after the tomato base has fried, simmer until just tender, and serve immediately, since gluten-free noodles soften faster as they sit.
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