Gratinated Mussels (Cozze gratinate)

Three gratinated mussels topped with a golden breadcrumb mixture, served on a white plate.

In May, we visited the Venetian coast, where one of the most common ways to serve seafood is gratinated with breadcrumbs. This preparation is especially delightful with mussels—their natural brininess is deepened by the heat of the oven, while the breadcrumbs are flavored by the mussel juices, creating a golden, savory crust. It’s a humble recipe, yet irresistibly delicious.

Ingredients

Ingredients for gratinated mussels, including mussels, garlic, parsley, olive oil, and breadcrumbs on a kitchen countertop.
  • 12 mussels
  • freshly ground black pepper
  • 1 garlic clove, peeled and halved
  • 1 Tbsp minced fresh flat leaf parsley
  • extra virgin olive oil
  • 4 Tbsp dry breadcrumbs

Instructions

A pot with mussels and garlic in olive oil, ready for cooking on a stovetop.

Put 2 tablespoons of olive oil in a pan with the mussels and a halved garlic clove.

A stainless steel pot with a lid, resting on a stovetop.

Cover and cook over medium-high heat…

A pot with mussels cooking in a bit of liquid, showing some opened shells and steam rising.

…until the mussels have just opened. To avoid bitterness, make sure the garlic doesn’t brown too much; you may need to adjust the heat or remove the garlic before the mussels have fully opened. 

Opening the mussels like this without any added water or wine will make the mussel juices extra concentrated and will only need a bit of liquid anyway.

A colander filled with freshly cooked mussels resting over a bowl, with some juices visible at the bottom.

Drain the mussels, reserving the liquid.

Fresh mussels in their half shells arranged on a dark surface.

Once the mussels have cooled enough to handle comfortably, gently remove the top shell, leaving the mussel nestled in the bottom half. This creates the classic “half shell” presentation, perfect for gratinating.

Preheat the oven to 225C/440F.

A glass bowl containing a mixture of minced fresh parsley and breadcrumbs on a dark surface.

In a small bowl, combine the dried breadcrumbs with finely minced parsley and a few generous grinds of black pepper.

A glass bowl containing a mixture of breadcrumbs and minced parsley, with a spoon resting inside.

Stir until well mixed.

A glass bowl containing a breadcrumb mixture with parsley, alongside a small white bowl with a reserved mussel liquid, set on a dark countertop.

Now, pour in a bit of the reserved mussel liquid and stir until the mixture is well combined. The goal is to achieve a creamy consistency—moist enough to hold together, but not overly wet. This balance ensures the topping will crisp up beautifully in the oven without becoming soggy.

Baked mussels topped with breadcrumbs and herbs on a baking tray.

Place the mussels on a baking sheet, arranging them so they sit steadily on their half shells. Spoon a bit of the breadcrumb mixture onto each mussel, making sure to cover the flesh well. Drizzle a little olive oil over the top to help the crust turn golden and crisp. Bake in the preheated oven at 225°C (440°F) for about 10 minutes, or until the topping is golden brown.

Gratinated mussels topped with breadcrumbs and herbs served on a white plate.

They can be served immediately while still hot, or allowed to cool slightly.

3 thoughts on “Gratinated Mussels (Cozze gratinate)

  1. The simpler a dish the more important the quality of the ingredients and the accuracy of the preparation. Have both made and eaten similar . . . yours look wonderfully appetizing . , hope you both enjoying you summer and somewhat getting away from the ‘madding throng’ . . ,

    Liked by 1 person

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