Recipes › Sauce › Aglio E Olio Sauce Recipe

Aglio E Olio Sauce Recipe

Recipe by Pedro M. A. Neves

Aglio e olio is a classic Roman pasta sauce made from just garlic, olive oil, and dried red pepper—a minimalist masterpiece that relies entirely on quality ingredients and precise technique. This authentic aglio e olio sauce comes together in minutes and transforms simple spaghetti into an elegant dish celebrated throughout Italy for its bright, peppery warmth. The silky emulsion of infused oil coats each strand of pasta with concentrated garlic flavor and subtle heat.

Ingredients

• 180 ml extra virgin olive oil
• 8 garlic cloves, thinly sliced (approximately 30 g)
• 2 teaspoons dried red pepper flakes (peperoncino)
• 400 g spaghetti or linguine
• 6 g fresh flat-leaf parsley, finely chopped
• 3 g coarse sea salt
• 1 g freshly ground black pepper

Instructions

1. Slice the garlic cloves thinly, approximately 2–3 mm thick, to ensure even cooking and maximum flavor extraction.

2. Bring a large pot of salted water (approximately 4 liters) to a rolling boil.

3. Pour the extra virgin olive oil into a large skillet and place over medium heat. Add the sliced garlic and dried red pepper flakes.

4. Cook for 3–4 minutes, stirring occasionally, until the garlic becomes light golden and fragrant but does not brown. Reduce heat to low if garlic begins to darken.

5. While the sauce cooks, add the spaghetti to the boiling salted water and stir to prevent sticking. Cook until al dente, approximately 9–11 minutes depending on brand.

6. Reserve 240 ml (1 cup) of pasta water before draining the spaghetti.

7. Add the drained spaghetti directly to the skillet with the garlic oil over low heat, tossing constantly.

8. Pour 120 ml (½ cup) of reserved pasta water into the skillet gradually while tossing, creating a light emulsion that coats each strand. Add more pasta water as needed to achieve a silky consistency.

9. Remove from heat and season with the chopped fresh parsley, coarse sea salt, and freshly ground black pepper. Toss gently to combine.

10. Divide into four pasta bowls and serve immediately with additional grated Pecorino Romano cheese and a drizzle of premium olive oil if desired.

Substitutions

• Substitute dried red pepper flakes with fresh thinly sliced red chili for a more delicate heat and fresh flavor.
• Replace fresh flat-leaf parsley with fresh mint for a Sicilian variation, or omit entirely for a purist approach.
• Use garlic-infused oil in place of regular olive oil and fresh garlic if preparing for those with garlic sensitivities (though this alters authenticity).
• Substitute extra virgin olive oil with a lighter fruity olive oil if you prefer a more subtle garlic presence.

Tips

• Do not brown the garlic; it will become bitter and ruin the delicate balance of the sauce. Keep heat at medium or lower and stir frequently.
• The starchy pasta water is essential—it emulsifies with the oil to create the silky coating rather than a greasy finish. Add it gradually and taste for consistency.
• Serve immediately in warm bowls; aglio e olio does not hold well and the oil will separate if allowed to sit.
• Purchase whole garlic cloves and slice them fresh rather than using pre-minced garlic, which oxidizes quickly and lacks the clean, bright flavor required for this dish.

Aglio e olio originated in Naples and Rome as a dish for working-class families who had only pantry staples on hand. It remains iconic in Italian cuisine as spaghetti aglio e olio, often served late at night in Roman trattorias and considered a mark of a kitchen's technical skill—where the simplicity of ingredients makes every technique visible.

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