Creamy, garlicky prawns brightened with lemon and paired with ripe avocado on crisp toasted bread—this Prawn Crostini is a simple yet elegant bite. The contrast of crunchy toast and cool, buttery avocado lets the prawns shine, making each mouthful balanced and satisfying. It’s light enough for lunch and polished enough for entertaining.
The same buttery, garlicky flavors work well with warm mains and simple sides. If you enjoy dishes that feel special without being fussy, these prawn and avocado crostini deliver a refined seafood note while staying easy to prepare and serve.
What Makes This Recipe So Good
This prawn crostini succeeds by letting the prawns be the focal point rather than covering them with heavy sauces. A quick sauté in garlic oil with a squeeze of lemon keeps the prawns juicy and bright. Cubed avocado adds a silky counterpoint that softens the lemon and garlic without masking the seafood flavor. The result is a combination that feels fresh, indulgent and effortless.
It also strikes a nice balance between impressive and easy — elegant in presentation but straightforward in technique, so you can serve something memorable without spending hours in the kitchen.
What Goes Into Prawn Crostini

This crostini keeps the ingredient list short and focused so each element contributes to flavor and texture.
- King Prawns: Choose large prawns for a meaty, satisfying bite that stands up to garlic and lemon.
- Garlic Olive Oil: Garlic-infused oil adds depth from the pan without needing butter or heavy sauces.
- Ripe Avocado: Creamy avocado balances the acidity and garlic, giving a luxurious texture without heaviness.
- Crusty Ciabatta or Sourdough: A firm, airy bread provides the necessary crunch and structure so the topping doesn’t make the base soggy.
Note: See the recipe card at the bottom for the full ingredient list with measurements.
How To Make Prawn Crostini

- Toast the bread: Preheat your grill or broiler to medium-high. Arrange the bread slices on a lightly greased tray and toast until golden and crisp. Set aside to cool briefly.

- Season the prawns: In a bowl, toss the prawns with minced garlic, sweet paprika and lemon juice. Lightly season with salt to enhance their natural sweetness.

- Sauté the prawns: Warm the garlic olive oil in a large skillet over medium-high heat. Add prawns and cook just until they begin to turn pink — only a few minutes so they stay juicy.

- Finish with parsley: Reduce the heat and stir in chopped parsley, cooking briefly until the prawns are opaque, glossy and just cooked through.

- Mix the avocado salad: In a bowl, gently combine cubed avocado, diced tomato, lemon juice and a pinch of salt. Stir carefully so the avocado keeps some texture.

- Assemble the crostini: Fold the warm prawns into the avocado mixture just before serving, spoon generously over the toasted bread, and serve immediately so the toast stays crisp.
These crostini pair nicely with warm or textured sides that won’t overpower the fresh prawn and avocado topping. They’re a great starter alongside a simple vegetable side or a light soup, and they work well on a party platter with other small bites.
Tips For Making Garlic Prawn Crostini
- Pat prawns dry before cooking so they sear quickly rather than steam; this preserves texture and color.
- Toast the bread thoroughly—your topping is moist, so a crisp base prevents sogginess.
- Add warm prawns to the avocado at the last moment so the heat softens the avocado slightly without turning it into a puree.
- If the avocado is very ripe, fold gently to keep small creamy chunks instead of mashing it smooth.
Recipe FAQs
Make sure the bread is well toasted and cooled before adding the topping. A very light brush of olive oil on the toast creates a small barrier that helps keep it crisp a bit longer.
Keep the toasted bread and the prawn-avocado mixture separate and assemble just before serving. That way each crostini stays crunchy and the topping remains fresh.
Lemon juice slows oxidation, and covering the avocado mixture tightly with plastic wrap pressed to the surface will help if you need to wait before serving.


Garlic Prawn and Avocado Crostini
Ingredients
Garlic Prawns:
- 2 tablespoons garlic olive oil
- 2-3 cloves garlic minced
- 1 teaspoon sweet paprika
- 1/2 a lemon, juiced about 1-2 tablespoons
- 1.1 lbs king prawns no tail, peeled and deveined
- 1/4 cup fresh parsley finely chopped
Avocado Salad:
- 1 whole avocado cubed
- 1 large ripe tomato diced
- 1/2 a lemon, juiced about 1-2 tablespoons
- 1 pinch salt to season
- 1 loaf ciabatta or sourdough vienna bread cut into 1cm slices
Instructions
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Preheat oven to grill/broil on medium-high. Place bread on a lightly greased baking tray and grill/broil until golden. Remove and set aside.
Garlic Prawns:
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Combine garlic, paprika, lemon juice and prawns in a bowl and mix well. Season with salt to taste. Drizzle garlic oil into a large skillet and heat over medium-high for about 3 minutes. Reduce heat to low, add the prawns and parsley, and cook for about 2 minutes until the prawns change color. Set aside.
Salad:
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Combine avocado, tomato, lemon juice and salt in a bowl, mixing gently. Add the prawns and fold through until just combined. Spoon the prawn and avocado mixture onto the toasted bread and serve.
Notes
Nutrition
Nutrition information is automatically calculated and should be used as an approximation.