This homemade garlic butter shrimp scampi brings the flavors of an Italian restaurant to your kitchen. Juicy shrimp are quickly sautéed until tender, then tossed with perfectly cooked spaghetti and crispy roasted broccoli. The star of the dish is a quick garlic butter made with lemon zest, Parmesan and a pinch of chili flakes for a subtle kick.
Everything comes together in a buttery, savory sauce with a splash of lemon juice and seafood stock concentrate. Serve it with extra Parmesan and chili flakes on top for a meal that’s impressive yet easy enough for any weeknight.
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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 all produce. Cut broccoli florets into 1-inch pieces if necessary. Zest and quarter lemon. Peel and grate or mince 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 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 small pinch of chili flakes if desired. Mash 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 stock concentrate, drained spaghetti, roasted broccoli, garlic butter and ¼ cup reserved pasta cooking water. Toss until everything is combined and coated in a buttery 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.
Recipe Tips
For extra crispy broccoli, make sure the florets are in a single layer on the baking sheet.
Reserve more pasta water than you think you need; it helps loosen the sauce if it becomes too thick.
Don’t overcook the shrimp; they cook quickly and become rubbery if left too long.
FAQ
Can I use frozen shrimp?
Yes, thaw them completely and pat dry before cooking to ensure they sear properly.
What can I substitute for seafood stock concentrate?
You can use ¼ cup of fish stock or clam juice or simply omit it and add a splash of white wine.
Can I make this dish gluten-free?
Absolutely, use gluten-free spaghetti and ensure all other ingredients are gluten-free.

























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