2piecescalamansior substitute 1 tablespoon fresh lemon juice
½teaspoonsaltplus more to taste
¼teaspoonfreshly ground black pepper
7ozspaghetti
1teaspoondried oregano
1tablespoonfresh parsleyfinely chopped, for garnish
½cupreserved pasta cooking water
Instructions
Pat the shrimp dry with paper towels. Season with salt and pepper and toss to coat evenly. Set aside.
Bring a large pot of generously salted water to a boil. Cook the spaghetti according to package directions until al dente. Reserve ½ cup (120ml) of the starchy pasta cooking water, then drain the spaghetti and set aside.
Heat a 12-inch skillet over medium-low heat. Add the butter and 1 tablespoon of extra virgin olive oil. Once the butter has melted and is foaming, proceed to the next step.
Increase heat to medium. Add the seasoned shrimp in a single layer and cook for 1–2 minutes per side until pink and just cooked through. Do not overcook — they will continue cooking in residual heat. Transfer the shrimp to a plate and set aside.
Reduce heat to medium-low. Add the minced garlic to the same skillet and sauté for 30–60 seconds, stirring constantly, until fragrant. Do not let it brown.
Increase the heat to medium-high. Squeeze in the calamansi juice (or lemon juice) and add the dried oregano. Stir to combine.
Add ½ tablespoon of white vinegar and stir.
Let the sauce simmer for 1–2 minutes until slightly reduced and fragrant.
Return the shrimp to the skillet. Add the drained spaghetti and toss everything together over medium heat. Add a splash of reserved pasta cooking water (2–3 tablespoons) to help the sauce coat the pasta evenly. Toss for 30 seconds.
Taste and adjust salt and pepper if needed. Divide among 4 plates or bowls and garnish with freshly chopped parsley. Serve immediately.
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Notes
Notes
Storage: Refrigerate leftovers in an airtight container for up to 2 days. The pasta will absorb sauce as it sits — add a splash of olive oil or butter when reheating.
Reheating: Warm in a skillet over medium-low heat with a tablespoon of water or butter to revive the sauce. Microwave works but may toughen the shrimp.
Make-ahead: Peel, devein, and season the shrimp up to 12 hours ahead; store covered in the fridge. Cook the pasta and sauce fresh for the best texture.
Substitution: No calamansi? Use the juice of 1 small lemon or 2 tablespoons fresh lime juice for similar acidity.
Pro tip: Reserve ½ cup of starchy pasta cooking water before draining — toss it into the skillet with the shrimp sauce to create a silkier, emulsified coating that clings to every strand of spaghetti.