Gambas al ajillo, the classic Spanish garlic shrimp, is a beloved tapas dish that brings the flavors of sunny terraces and cool tapas bars straight to your kitchen. This easy gambas al ajillo recipe uses sizzling olive oil, garlic, and chili to create a mouthwatering shrimp dish that's perfect for any occasion. Ready in just 20 minutes, it's a simple yet impressive appetizer or main course.
Why This Gambas al Ajillo Recipe Works
Authentic gambas al ajillo relies on quality ingredients and a simple technique. The key is to gently infuse the olive oil with garlic and chili, then cook the prawns quickly to keep them tender and juicy. Using shell-on prawns adds depth of flavor, but this recipe also works with peeled shrimp for convenience.
Get the #1 Wireless Door Camera
REOLINK Bestseller: 2K Weatherproof Video Doorbell, No Monthly Fees.
Ingredients for Spanish Garlic Shrimp
- 8 sustainably sourced raw shell-on king prawns
- 4 garlic cloves, thinly sliced
- 120ml olive oil (use a good quality extra virgin)
- A few flat-leaf parsley stems, chopped
- 4 small dried chillies, or 1 tsp cayenne pepper
- 2 tsp sherry vinegar or lemon juice
- Salt and black pepper
- Bread slices, to serve
Step-by-Step Instructions for Perfect Gambas al Ajillo
1. Prepare the Prawns
Peel the shell-on prawns by twisting off the heads, then peel down the back and twist off the tails. Keep all the shells – they add incredible flavor to the oil. Devein the prawns by running a small knife down the back and removing the dark digestive tract if visible.
2. Infuse the Olive Oil
Heat the olive oil in a large skillet over medium heat. Add the prawn shells and cook for 3-4 minutes, pressing them with a spoon to release their juices. Remove the shells and discard. This step creates a rich, seafood-infused oil that is the soul of this dish.
3. Sizzle Garlic and Chili
Add the sliced garlic and dried chillies (or cayenne) to the hot oil. Cook for 30-60 seconds until fragrant, but do not let the garlic burn – it should be golden, not brown. The garlic will crisp up slightly, adding texture and flavor.

4. Cook the Prawns
Season the prawns with salt and pepper, then add them to the skillet in a single layer. Cook for 1-2 minutes per side, until they turn pink and are just cooked through. Be careful not to overcook – they should be tender and juicy.
5. Finish and Serve
Remove the skillet from heat and stir in the sherry vinegar or lemon juice and chopped parsley. The residual heat will meld the flavors. Serve immediately in the sizzling skillet with crusty bread for dipping into the glorious garlicky oil.
Comparison: Fresh vs. Frozen Prawns
| Type | Flavor | Convenience | Best Use |
|---|---|---|---|
| Fresh Raw Shell-On | Sweet, delicate | Requires peeling | Authentic flavor |
| Frozen Raw Shell-On | Good if thawed properly | Easy to store | Great alternative |
| Cooked Shell-On | Less intense | Quick to warm | In a pinch |
| Peeled Raw | Milder | No fuss | Add shrimp paste or fish sauce |
Key Takeaways for the Best Gambas al Ajillo
- Use good quality olive oil – it's the base of the dish.
- Don't overcrowd the pan; cook prawns in a single layer.
- Watch the garlic – burnt garlic ruins the flavor.
- Serve immediately for the signature sizzle.
- Pair with crusty bread to soak up every drop of garlic oil.