1.3 to 1.5kgwhole side of a salmon (deboned and skinned)(NOTE 1)
CREAM CHEESE MIXTURE
40gmunsalted butter
3clovesgarlic (minced)
½mediumbrown/yellow onion (diced finely)
300gmcream cheese (chopped roughly into cubes)
¾cupfreshly shredded parmesan cheese(NOTE 2)
⅓cupfresh dill (finely chopped)
¼cupbaby capers (drained and chopped)
½tsp salt
280gmbaby spinach(NOTE 3)
BUTTER RUB
40gmunsalted butter (softened)
2clovesgarlic (minced)
1tspfinely grated lemon rind
1tspdijon mustard
¾tspsalt
½tsp freshly ground pepper
PASTRY
4sheetspuff pastry (NOTE 4)
1smallegg (beaten)
Instructions
Remove the salmon from the fridge and pat it dry all over with paper towels. Leave at room temperature for 15-20 minutes (depending on how warm it is)Optional - Trim the very thin side of the salmon with a sharp knife for a neater look, or so the fillet fits on the tray and oven. Use the cut-up salmon parts later for soup or pan-fry it for a yummy meal!
For the cream cheese mixture - Melt the butter over medium heat in a large deep frying pan or a saucepan. Place in the onions and garlic and stir-fry for a minute or until fragrant. Add in the cream cheese, and use a wooden spoon to help break up the cheese. It'll melt slowly but look clumpy. This is normal, so just keep stirring.
Once the cream cheese has almost melted, add in parmesan, dill, capers and salt, then stir until the parmesan has melted. Add in the baby spinach, but a bunch at a time whilst stirring constantly, they should wilt into the mixture. Have a taste of the cream cheese mixture, then add more salt and pepper to your liking if needed. Remove the cream cheese mixture from the heat and place it into a bowl and set aside for later.
Preheat oven to 200°C (390°F) or 180°C (360°F) for fan-forced ovens. Line a large tray that can fit the salmon with non-stick baking/parchment paper and spray it lightly with oil spray. Place two puff pastry sheets on the prepared tray, then join the pastry in the middle by slightly overlapping the pastry by approximately 2cm/0.8in. Press down the seams slightly to join them together. This pastry should be long enough to fit the entire salmon with a few inches remaining to enclose the salmon, if not trim the salmon to make it slightly smaller.
In a small bowl, mix all the butter rub ingredients together until well combined. Lay the salmon on a large board with the smooth side facing up. Place HALF of the butter mixture onto the smooth side of the salmon using your fingers to rub it on until it's evenly coated.
Carefully place the buttered side of the salmon down in the centre over the prepared pastry, then rub the remaining butter mixture on the other side of the salmon. Use a large spoon to place the cream cheese mixture over the salmon. Place two puff pastry sheets over the salmon, then join them in the middle following the same method.
Use a knife to trim the pastry around the salmon, leaving approximately 3cm/1in, but take care not to cut the baking paper as you will need this to lift the salmon out later. With the back of a fork, crimp the pastry together to encase the salmon. Score into the pastry diagonally, then brush the egg over the pastry.Bake for 35 to 45 minutes or until the pastry is nice and golden.
Notes
(NOTE 1) Salmon - I used an entire side of salmon, mine weighed 1.4kg/3lb, so anything between 1.3kg/2.9lb to 1.5kg/3.3lb is ideal. Ask your fishmonger to remove the skin and bones for you, and if you like, tell them to you want to keep the skin after it's been removed. Crispy salmon skin is so good, just fry them up in strips.(NOTE 2) Parmesan cheese - It's worth the effort to grate your own parmesan cheese rather than buying store-bought shredded cheese. Most pre-shredded cheese contains anti-caking agents, which may not melt properly when heated and this may make the sauce grainy.(NOTE 3) Baby spinach is more tender and sweeter than regular spinach, this makes them easier to wilt into the cheese mixture.(NOTE 4) Frozen pre-rolled puff pastry - For convenience, I used prepackaged ready-rolled pastry. Mine were 24cm (9.5in) square pastry sheets. Follow the instructions on the packet on how to defrost the pastry sheets, but don't leave them out for too long. They'll go elastic and break easily, making them harder to work with.Leftovers - Allow the Salmon Wellington to cool completely at room temperature, then transfer it into a sealed container and store it in the fridge. It should be good for 3-4 days.I've used a third-party application to calculate the calories and nutritional information, so please use this as an approximate guide only.Cooking measurements are in Australian standard spoon and cup measurements. For specific details and conversions, visit ourAustralian Cooking Measurements page.