This garlic butter shrimp scampi is a showstopper that comes together in under 30 minutes. Juicy shrimp, perfectly al dente spaghetti and crispy roasted broccoli are tossed in a rich homemade garlic butter sauce infused with lemon zest, Parmesan and a touch of chili flakes. It’s the kind of meal that feels special enough for company but easy enough for a busy weeknight.
The secret is the compound butter: softened butter mixed with lemon zest, garlic, Parmesan and chili flakes. As it melts into the hot pasta and shrimp, it creates a silky, flavorful sauce that coats every strand. A squeeze of fresh lemon juice brightens everything up. Serve with extra lemon wedges and a sprinkle of Parmesan for a truly memorable dinner.
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Recipe details
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Ingredients
Instructions
- Adjust rack to top position and preheat oven to 450°F. Bring a large pot of salted water to a boil. Wash and dry produce. Cut broccoli into 1-inch pieces. Zest and quarter lemon. Peel and mince or grate garlic.
- Toss broccoli on a baking sheet with a drizzle of olive oil, salt and pepper. Roast on top rack until browned and crispy, 12-15 minutes.
- Once water is boiling, add spaghetti to pot. Cook, stirring occasionally, until al dente, 9-11 minutes. Reserve ½ cup pasta cooking water, then drain.
- While pasta cooks, place 3 tablespoons butter in a small microwave-safe bowl. Microwave until just softened, about 10 seconds. Add lemon zest, half the Parmesan (save the rest for serving), a pinch of garlic and a pinch of chili flakes if desired. Mash with a fork to combine. Season with salt and pepper.
- Rinse shrimp under cold water, then pat dry with paper towels. Toss in a large bowl with a large drizzle of olive oil, remaining garlic, salt and pepper. Heat a large pan over medium-high heat. Add shrimp and cook, stirring occasionally, until opaque and cooked through, 2-4 minutes.
- To pan with shrimp, add drained spaghetti, broccoli, stock concentrate, garlic butter and ¼ cup reserved pasta cooking water. Toss until everything is thoroughly coated in sauce. Add a squeeze or two of lemon juice to taste. Season with salt and pepper. Divide pasta between bowls and top with remaining Parmesan and a pinch of chili flakes if desired. Serve with any remaining lemon wedges on the side.
Recipe Tips
For extra flavor, use freshly grated Parmesan and squeeze lemon juice just before serving.
Do not overcook the shrimp; they cook quickly and become rubbery if overdone.
Reserve more pasta water than you think you need-it helps loosen the sauce to the perfect consistency.
FAQ
Can I use frozen shrimp?
Yes, thaw them completely under cold running water and pat dry before cooking.
What can I substitute for seafood stock concentrate?
You can use ¼ cup of white wine or chicken broth or simply omit it-the dish will still be flavorful.
Can I make this dish gluten-free?
Absolutely! Use gluten-free spaghetti and ensure all other ingredients are gluten-free.

























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