I first made this Salmon en Croûte when I was testing a new main dish for Thanksgiving as an alternative to turkey. I wanted something that still felt impressive and festive, but lighter and full of flavor. From the moment it came out of the oven, golden and crisp with the smell of herbs and butter filling the kitchen, I knew this was a recipe worth sharing.
Salmon en Croûte, which means “salmon in a crust,” is a French-inspired dish that wraps tender salmon in flaky puff pastry with a rich, creamy filling. The contrast of textures is what makes it so special. The puff pastry turns perfectly crisp, while inside the salmon stays juicy and the spinach and Boursin cheese mixture melts into a savory, herby layer of flavor.
It is elegant enough for the holidays but simple enough to make for a dinner party or date night. Once you slice into that golden crust and see the beautiful pink salmon and creamy filling, it instantly becomes the centerpiece of the table.

Why You’ll Love This Salmon en Croûte
- Elegant but easy: Impressive presentation without complicated steps.
- Full of flavor: Creamy Boursin cheese, lemon, dill, and buttery pastry come together perfectly.
- Perfect for any occasion: Ideal for holidays, dinner parties, or a cozy night in.
- Always a hit: It’s a unique main course that guests remember long after the meal.

When to Make This Salmon en Croûte
This recipe is perfect for special occasions like Thanksgiving, Christmas, Easter, or an anniversary dinner at home. It’s a great way to switch up the usual main dish and introduce a new tradition. I love serving it with roasted vegetables or a fresh salad for a balanced and beautiful meal.

Salmon en Croûte Tips
- Pat the salmon dry before assembling so the pastry stays flaky and light.
- Squeeze out all excess moisture from spinach to prevent sogginess.
- Chill the assembled Salmon en Croûte for 15 minutes before baking to help the pastry hold its shape.
- Use a preheated baking sheet or pizza stone to crisp the bottom layer.
- Always vent the top with small slits to release steam.
- Let it rest for 10 minutes after baking so the filling sets and the layers slice cleanly.
FAQs
How do I know when Salmon en Croûte is done?
The salmon is perfectly cooked when it reaches an internal temperature of 145°F in the thickest part. You can check it with a digital thermometer inserted through one of the slits on top. The puff pastry should be golden brown, crisp, and flaky all over. If the pastry is browning too quickly before the salmon is fully cooked, loosely cover the top with foil and continue baking until done.
How do I keep the bottom from getting soggy?
A soggy bottom usually happens when the filling contains too much moisture. Be sure to squeeze out as much liquid as possible from the cooked spinach and pat the salmon dry before wrapping it in pastry. For extra insurance, sprinkle a thin layer of breadcrumbs or crushed crackers on the bottom puff pastry sheet before placing the salmon on top to absorb any remaining moisture as it bakes. You can also preheat your baking sheet in the oven for about 5 minutes before adding the assembled Salmon en Croûte. The hot pan helps the bottom crust start crisping immediately so it bakes up perfectly flaky instead of soft.
Should I use fresh or frozen puff pastry?
Frozen puff pastry works great as long as it’s fully thawed before rolling out. If it’s still too cold or stiff, it can crack when folded. Let it rest at room temperature for about 20 minutes before using so it’s pliable but still cool.
Do I need to vent the pastry?
Yes. Cutting small slits in the top of the pastry allows steam to escape, which keeps the crust crisp and prevents the filling from making it soggy inside.
Serving Suggestions
Serve this Salmon en Croûte with roasted asparagus, mashed potatoes, cranberry or berry jam, and extra dijon mustard on the side. It also pairs beautifully with white wine, champagne, or sparkling water with a slice of lemon for a bright finish.
For dessert, it pairs perfectly with my Lemon Bars to end the night on a sweet note.

Watch This Recipe
@megsescapades
Salmon en Croûte
Ingredients
- 1 tbsp olive oil
- 1 shallot diced
- 6 oz fresh spinach
- 2 (5.3 oz) packages Boursin garlic and fine herb cheese
- 4 oz mascarpone
- 1/2 tbsp dill
- 1 lemon juiced and zested
- 1.75 – 2 lbs salmon boned and skinned
- 1 tbsp dijon mustard
- 1 tsp smoked paprika
- 1 tsp Green Goddess seasoning (Trader Joe’s or similar)
- 2 sheets frozen puff pastry thawed (I prefer Pepperidge Farm brand)
- 1 egg white (for egg wash)
Method
- Preheat the oven to 400°F and line a baking sheet with parchment paper.
- Heat olive oil in a skillet over medium heat. Add the shallot and sauté for about 3 minutes. Add spinach and cook for 10 minutes until wilted. Once cooled, squeeze out excess water.
- In a bowl, mix Boursin cheese, mascarpone, dill, lemon juice, and zest. Stir in the spinach until smooth and creamy.
- Roll out both sheets of puff pastry. Place one on the prepared baking sheet. Pat salmon dry and place it in the center. Spread Dijon mustard over the top, sprinkle with smoked paprika and Green Goddess seasoning, and top with the spinach mixture.
- Lay the second puff pastry sheet over the top and seal the edges. Crimp with a fork and cut a diagonal slits on top for steam to escape. Whisk the egg white with a splash of water and brush it over the pastry. Bake for 35 to 45 minutes until golden and the salmon reaches 145°F internally.
- Let rest for 10 minutes before slicing and serving.



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