This Mary Berry Jumbo Prawns with Aïoli recipe is a garlicky and indulgent dish, which features succulent shell-on prawns and homemade garlic mayonnaise. It’s a hands-on seafood feast, ready in about 20 minutes.
Jump to RecipeMary Berry Jumbo Prawns with Aïoli Ingredients
For the Prawns
- 12 uncooked jumbo prawns in their shells (fresh or defrosted)
- 2 tbsp olive oil (for frying)
- Chopped fresh parsley, to garnish
- Lemon wedges, to garnish
For the Aïoli (Garlic Mayonnaise)
- 2 garlic cloves, coarsely chopped
- 1 egg yolk (at room temperature)
- 1 tsp English mustard powder
- 150ml (¼ pint) olive oil (or sunflower oil for a lighter taste)
- 1 tbsp fresh lemon juice
- Salt and freshly ground black pepper

How To Make Mary Berry Jumbo Prawns with Aïoli
- Prepare the garlic paste: In a small bowl or mortar, crush the chopped garlic with a pinch of coarse salt using the back of a spoon or a pestle. Grind it until it forms a completely smooth paste. This prevents gritty garlic chunks in the smooth sauce.
- Start the emulsion: Place the garlic paste, egg yolk, and mustard powder into a mixing bowl. Whisk or beat well to combine.
- Add the oil: This is the critical step. Whisking constantly, add the olive oil drop by drop initially. Once the mixture starts to thicken and emulsify, you can pour the oil in a very thin, steady stream. Continue whisking until the mixture is thick, glossy, and smooth (like stiff mayonnaise).
- Finish the aïoli: Whisk in the lemon juice to thin the sauce slightly and add acidity. Season with black pepper and more salt if needed. Transfer to small dipping bowls.
- Cook the prawns: Heat the 2 tablespoons of olive oil in a large frying pan over high heat. Add the prawns (in their shells). Toss them frequently for 3–4 minutes. Watch them closely; as soon as the grey shells turn bright pink and opaque, they are done.
- Drain and serve: Remove the prawns from the pan immediately and drain briefly on kitchen paper to remove excess oil. Arrange on warmed plates, garnish with parsley and lemon wedges, and serve alongside the bowls of aïoli.

Recipe Tips
- Shell-on flavor: Cooking prawns in their shells keeps the meat incredibly juicy and imparts a deeper seafood flavor. It also makes eating them a tactile, fun experience.
- Aïoli rescue: If your aïoli splits (looks curdled/oily), start with a fresh egg yolk in a clean bowl. Slowly whisk the split mixture into the new yolk, drop by drop, to rescue it.
- Oil choice: A full olive oil aïoli can be quite bitter and intense. For a milder taste closer to modern palates, use half olive oil and half sunflower/vegetable oil.
- Mustard powder: Mary uses mustard powder rather than Dijon mustard here, which gives a clean, sharp heat that complements the garlic without adding moisture too early.
What To Serve With Mary Berry Jumbo Prawns with Aïoli
This dish is messy finger food, best served with simple sides.
- Crusty Bread: Essential for dipping in the leftover garlic sauce.
- Green Salad: A simple dressed salad cleanses the palate.
- Fries: Makes for a great “Prawns & Chips” meal.
- Finger Bowl: Provide a bowl of warm water with lemon for guests to wash their sticky fingers.

How To Store Mary Berry Jumbo Prawns with Aïoli
- Serve Immediately: Prawns become rubbery if reheated. Eat fresh.
- Refrigerate (Aïoli): The homemade aïoli can be stored in the fridge for up to 2 days.
- Freeze: Do not freeze the cooked prawns or the aïoli.
Mary Berry Jumbo Prawns with Aïoli Nutrition Facts
- Calories: 482kcal
- Protein: 6g
- Carbohydrates: 1g
- Fat: 50g
- Saturates: 7g
- Sugar: 0g
- Salt: 0.4g
Nutrition information is estimated per serving (based on 4 servings).
FAQs
Can I use cooked prawns?
If using pre-cooked prawns, just toss them in the hot pan for 1 minute to warm through. Cooking them for 3-4 minutes will make them tough.
Is raw egg safe?
The aïoli contains raw egg yolk. Use Lion-stamped (UK) or pasteurized eggs if serving to pregnant women, the elderly, or young children.
Can I use a blender for the aïoli?
Yes, put the garlic, egg, mustard, and lemon in a blender. With the motor running, drizzle the oil in slowly. It works perfectly and is much faster than hand-whisking.
Try More Recipes:
- Mary Berry Sardines with Coriander Recipe
- Mary Berry Moules Marinière Recipe
- Mary Berry Warm Salad with Bacon and Scallops Recipe
Mary Berry Jumbo Prawns with Aïoli Recipe
Course: AppetizersCuisine: FrenchDifficulty: Easy4
servings15
minutes5
minutes482
kcalSucculent shell-on jumbo prawns pan-fried quickly and served with a pungent, homemade garlic mayonnaise (aïoli).
Ingredients
12 jumbo prawns (raw, shell-on)
2 tbsp olive oil
Aïoli: 2 garlic cloves, 1 egg yolk, 1 tsp mustard powder, 150ml oil, 1 tbsp lemon juice
Directions
- Crush garlic and salt to a paste.
- Whisk garlic, yolk, and mustard.
- Gradually whisk in oil until thick.
- Add lemon juice and pepper.
- Fry prawns in hot oil for 3–4 minutes until pink.
- Drain and serve with aïoli.
Notes
- Crushing the garlic with salt acts as an abrasive, breaking down the cell walls to create a paste that integrates seamlessly into the sauce without leaving spicy raw chunks.
- Adding the oil “drop by drop” at the beginning is the golden rule of emulsion; if you rush the start, the egg yolk cannot absorb the oil and the sauce will split.
- Do not overcook the prawns; the moment they turn pink and curl slightly, they are done. Further cooking will only dry them out.
