Spicy Calamari Fra Diavolo with Spaghetti

Why You’ll Love This Recipe

• Restaurant-level flavor with simple pantry staples and weeknight timing.
• Tender, not rubbery, calamari thanks to a fast 60–90 second finish.
• Balanced heat: garlicky-chili zip with a fresh basil and lemon lift.
• One-pan sauce that clings beautifully to al dente spaghetti.

Grocery List

• Produce: 1 small yellow onion, 6 garlic cloves, 1 lemon, fresh basil (and optional flat-leaf parsley)
• Dairy: Unsalted butter (optional)
• Pantry: Spaghetti, extra-virgin olive oil, crushed red pepper flakes, tomato paste, 28 oz can crushed tomatoes, dry white wine, kosher salt, black pepper, sugar (optional), calamari (from seafood counter, 1 1/2 lb)

Full Ingredients

Pasta

• 12 oz dried spaghetti
• 1 tbsp kosher salt (for pasta water)

Sauce Base

• 3 tbsp extra-virgin olive oil
• 1 small yellow onion, finely chopped (about 3/4 cup)
• 6 garlic cloves, thinly sliced
• 1 to 1 1/2 tsp crushed red pepper flakes (to taste)
• 2 tbsp tomato paste
• 1/2 cup dry white wine
• 1 can (28 oz/800 g) crushed tomatoes (San Marzano preferred)
• 1 tsp sugar (optional, to balance acidity)
• 1 tsp kosher salt
• 1/2 tsp freshly ground black pepper

Calamari

• 1 1/2 lb (680 g) cleaned calamari, tubes cut into 1/2-inch rings, tentacles included
• 1/4 tsp kosher salt (for seasoning the calamari)

Finishing & Garnish

• 1 tsp lemon zest + 1 tbsp fresh lemon juice
• 1/4 cup fresh basil, thinly sliced (plus more for serving)
• 1 tbsp unsalted butter or extra-virgin olive oil
• Extra crushed red pepper flakes and chopped parsley (optional)

Step-by-Step Instructions

Step 1: Prep and set the pasta water

Bring 4 quarts of water to a boil in a large pot. Add 1 tablespoon kosher salt. Meanwhile, pat the calamari very dry with paper towels and slice the tubes into 1/2-inch rings if not pre-cut; leave tentacles whole. Finely chop the onion, slice the garlic, zest the lemon, and chiffonade the basil.

Step 2: Build the fra diavolo base

In a large, wide skillet or sauté pan, heat the olive oil over medium heat. Add the onion and cook, stirring, until translucent and lightly golden, 3–4 minutes. Add the garlic and crushed red pepper flakes; cook 30 seconds until fragrant. Stir in the tomato paste and cook 1 minute to caramelize slightly.

Step 3: Deglaze and simmer the sauce

Pour in the white wine and scrape up any browned bits; simmer until reduced by about half, 2–3 minutes. Add the crushed tomatoes, sugar (if using), 1 teaspoon kosher salt, and the black pepper. Bring to a lively simmer, then reduce to medium-low and cook 12–15 minutes, stirring occasionally, until thickened and glossy.

Step 4: Cook the spaghetti

Add the spaghetti to the boiling water and cook until al dente, 8–10 minutes (check your package). Reserve 1 cup of the starchy pasta water, then drain. Do not rinse.

Step 5: Flash-cook the calamari

Season the calamari with the remaining 1/4 teaspoon salt. Increase the sauce heat to medium-high. Add the calamari to the simmering sauce and stir gently. Cook just until opaque and barely firm, 60–90 seconds. Immediately turn off the heat and stir in the lemon zest, basil, and butter (or a drizzle of olive oil). Add the lemon juice and stir to combine.

Step 6: Toss and serve

Add the drained spaghetti to the skillet and toss vigorously, loosening with 1/4–1/2 cup reserved pasta water until the sauce clings silkily to the noodles. Taste and adjust seasoning and heat. Plate in warm bowls, garnish with extra basil (and parsley or chili flakes if you like), and serve right away.

Pro Tips

• Cook calamari either very fast (60–90 seconds) or very long (30+ minutes). For this recipe, the quick method keeps it tender.
• Pat the calamari dry so it sears and doesn’t water down the sauce.
• Salt your pasta water generously; it should taste like the sea for well-seasoned noodles.
• Reserve pasta water to create a glossy, emulsified sauce that hugs the spaghetti.
• Add basil and lemon off the heat to keep their aromas bright and fresh.

Variations

• Shrimp & Calamari Fra Diavolo: Swap half the calamari for peeled shrimp; add shrimp first (1–2 minutes), then calamari for the final 60–90 seconds.
• Calabrian Chili Twist: Replace red pepper flakes with 1–2 tsp Calabrian chili paste for a fruity, complex heat.
• Gluten-Free: Use your favorite gluten-free spaghetti; cook just to al dente to avoid mushiness.

Storage & Make-Ahead

The sauce base (through the end of Step 3, without calamari) can be made up to 3 days ahead and refrigerated, or frozen for up to 2 months. Calamari is best cooked right before serving; it toughens if reheated. If you must store leftovers, refrigerate up to 1 day and rewarm very gently on low, just until heated through. You can par-cook spaghetti 2–3 minutes shy of al dente, cool with a drizzle of oil, and finish in the sauce when ready to serve.

Nutrition (per serving)

Approximate: 610 calories; 18 g fat; 66 g carbohydrates; 38 g protein; 5 g fiber; 730 mg sodium. Values will vary based on brands and salt levels.