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Classic Spaghetti Aglio e Olio — Garlic, Olive Oil, and Chili in 15 Minutes

    Spaghetti aglio e olio proves how a few humble ingredients can deliver knockout flavor. Paper-thin garlic gently steeps in extra-virgin olive oil with a spark of red pepper, while starchy pasta water emulsifies it all into a glossy, silky sauce that coats every strand. Ready in just 15 minutes—ideal for a fast, deeply satisfying dinner.

    Ingredients

    • Spaghetti — 7 oz (200 g)
    • Extra-virgin olive oil — 1/4 cup (60 ml)
    • Garlic — 3 cloves
    • Red pepper flakes — 1/2 tsp, or 1/2 fresh red chili pepper
    • Flat-leaf parsley — 2 tbsp finely chopped (10 g)
    • Kosher salt for the water — 1 tbsp
    • Freshly ground black pepper — 1/4 tsp
    • Finely grated Parmesan — 1/4 cup (20 g), optional (not classic)

    Step-by-step recipe

    1. Prep the aromatics: slice the garlic paper-thin; finely chop the chili (remove seeds and ribs for less heat); finely chop the parsley.
    2. Bring a large pot of water to a boil. Season with 1 tbsp kosher salt and cook the spaghetti until al dente per package directions. Reserve about 1/2 cup (120 ml) of the pasta water.
    3. While the pasta cooks, warm the olive oil in a skillet over medium heat. Add the garlic and red pepper flakes; cook 1–2 minutes until fragrant, keeping the garlic pale—do not brown.
    4. Transfer the spaghetti to the skillet. Add 1/4–1/3 cup (60–90 ml) reserved pasta water and toss vigorously to form a silky emulsion of oil and starchy water.
    5. Fold in the parsley, season with black pepper and a pinch more salt if needed. Adjust the consistency with another splash of pasta water.
    6. Serve immediately. If you like, add a light shower of Parmesan (not traditional) and a fresh drizzle of olive oil.

    Nutrition

    Nutrient Per serving
    Calories 610 cal
    Protein 13 g
    Fat 28 g
    Carbohydrates 74 g
    Fiber 3 g
    Sugar 2 g
    Sodium 350 mg

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    Tips and variations

    • Let the garlic gently steep, not fry: keep the heat at medium, and if the slices start to color, pull the pan off the heat for a moment.
    • Control the heat with flakes or fresh chili; for a milder bite, remove seeds and ribs.
    • The secret to a silky sauce is starchy pasta water. Add it gradually and toss vigorously until the pasta looks glossy and well-coated.
    • Variations: a pinch of lemon zest; toasted breadcrumbs for crunch; capers or anchovies (not classic, but delicious).
    • Gluten-free: use gluten-free spaghetti and watch the cook time closely.

    What to serve with

    • A crisp green salad with lemon vinaigrette.
    • A light, dry white wine (Pinot Grigio, Verdicchio) or something sparkling.
    • Toasted ciabatta for mopping up the sauce.

    FAQ

    Can I swap fresh chili for flakes?
    Yes. Use 1/2 tsp red pepper flakes and adjust the heat to taste.
    Why does the garlic taste bitter?
    It overheated and browned. Cook over medium heat and keep the garlic pale and just translucent.
    Which pasta shape works best?
    Traditionally spaghetti, but linguine, fettuccine, or bucatini work well—long shapes hold the sauce beautifully.
    Is this dish vegan?
    Yes, if you skip the cheese. The base recipe is fully plant-based.
    How do I store and reheat leftovers?
    Refrigerate up to 2 days in an airtight container. Reheat gently in a skillet with a splash of water (or reserved pasta water) and a drizzle of oil.