Gambas al ajillo is Spain’s iconic garlic shrimp dish, where plump shrimp are quickly cooked in olive oil infused with sliced garlic and a hint of guindilla pepper. It works because the high heat of the oil gently cooks the shrimp while the garlic turns sweet and nutty, creating a glossy, aromatic sauce that begs to be sopped up with crusty bread. Served sizzling in a small clay cazuela, it’s a tapa that feels both rustic and elegant.
Ingredients
- 1 lb (450 g) large shrimp, peeled and deveined (tails left on)
- 1 cup (240 ml) extra-virgin olive oil
- 8 cloves garlic, thinly sliced
- 1 dried guindilla pepper (or 1/2 tsp red pepper flakes)
- 1/2 tsp smoked paprika (optional)
- 1 tbsp (15 ml) dry sherry (or white wine)
- 1 tbsp (15 ml) fresh lemon juice
- 2 tbsp (8 g) fresh parsley, finely chopped
- 1/2 tsp flaky sea salt, plus more to taste
- Crusty bread, for serving
Instructions
- Pat the shrimp dry with paper towels. Season lightly with salt and set aside at room temperature while you prepare the oil.
- In a large skillet or traditional cazuela, heat the olive oil over medium-low heat. Add the garlic slices and the guindilla pepper (or red pepper flakes). Cook gently, stirring often, until the garlic is fragrant and just beginning to turn golden, about 2–3 minutes. Do not let it brown or burn, or it will turn bitter.
- If using smoked paprika, add it now and stir for 10 seconds until aromatic.
- Increase the heat to medium-high. Carefully add the shrimp in a single layer (they should sizzle immediately). Cook for 1–2 minutes without stirring, until the bottoms turn pink.
- Flip the shrimp and add the sherry (or wine) and lemon juice. Cook for another 1–2 minutes, until the shrimp are opaque and just cooked through. The internal temperature should reach 145°F (63°C) as the safe minimum per USDA FSIS guidelines.
- Remove the pan from the heat immediately. Sprinkle with chopped parsley and flaky salt to taste.
- Serve hot, directly from the pan, with plenty of crusty bread for dipping into the garlic oil.
Tips
- Use the right pan: A traditional clay cazuela retains heat beautifully, but a heavy stainless or cast-iron skillet works just as well. Avoid nonstick if possible, as it doesn’t hold heat as evenly for the sizzling effect.
- Don’t crowd the pan: Cook the shrimp in batches if your pan is small. Overcrowding lowers the oil temperature, causing the shrimp to steam rather than sear.
- Control the garlic: Thin slices infuse the oil more gently than minced garlic, which can burn quickly. If you prefer a stronger garlic flavor, use a mix of sliced and lightly smashed cloves.
- Substitute the guindilla: If you can’t find guindilla peppers, use 1/2 teaspoon of red pepper flakes or a small piece of dried chile de árbol. The heat level will vary, so add gradually.
Serving Suggestions
Serve gambas al ajillo as a tapa with cold beer or a crisp Albariño. It’s also excellent as a light main course over white rice or with a simple green salad. The garlic oil is the star—provide extra bread to soak up every last drop.
Variations
- Add tomatoes: Stir in 1/2 cup (120 ml) of diced ripe tomato along with the paprika for a slightly richer, more substantial sauce.
- Use chicken instead: For a non-seafood version, replace shrimp with bite-sized chicken breast, cooking until it reaches 165°F (74°C) internally.
- Make it spicier: Add an extra guindilla pepper or a pinch of cayenne for more heat.
- Add herbs: Fresh oregano or thyme added in the last minute of cooking gives an earthy note.
Storage and Reheating
Refrigerate any leftovers in an airtight container within 2 hours of cooking. They will keep for up to 2 days (shrimp become rubbery if stored longer). To reheat, place the shrimp and oil in a skillet over low heat, warming gently until just heated through—do not boil, or the shrimp will toughen. The oil will solidify when cold; that’s normal. You can also reheat in a microwave at 50% power in 30-second bursts, but the texture will be less ideal.
Frequently Asked Questions
Can I use frozen shrimp? Yes, but thaw them completely in the refrigerator overnight or in a bowl of cold water for 30 minutes. Pat them very dry before cooking, as excess moisture will prevent browning.
What is guindilla pepper and where can I find it? Guindilla is a mild, slightly spicy dried Spanish pepper. Look for it in Spanish grocery stores or online. If unavailable, use a pinch of cayenne or red pepper flakes.
Why did my garlic turn bitter? Garlic burns quickly at high heat. Keep the heat low when infusing the oil and remove the pan from the stove as soon as the garlic is golden. Burnt garlic ruins the dish.
Can I make this without sherry? Absolutely. Dry white wine or even a splash of chicken stock works. The sherry adds a nutty depth, but the dish is still delicious without it.
How do I know when the shrimp are done? They should be opaque throughout and curl into a loose ‘C’ shape. Overcooked shrimp curl tightly into an ‘O’ and become tough. Using a thermometer, the center should read 145°F (63°C).
Is it okay to eat the garlic? Yes, the garlic slices are delicious once softened and slightly caramelized. Some people prefer to leave them out, but they add flavor and texture.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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