This delicious orange and marmalade-glazed salmon is gloriously simple to cook, and it will go from your fridge to your table in around 15-20 minutes, making it a perfect midweek meal.
Zest the orange into a 15cm or 6" saucepan, then squeeze in the juice from the lemon.
Add the marmalade, fish sauce and thyme to the pan, turn the heat to medium and then reduce by about 50%. This will take around 7-10 minutes, depending on the temperature.
4-5 minutes after the sauce has been cooking, heat a 25cm or 10" frying pan over a medium-high heat, and when it is hot, add the butter and cooking oil.
Season the salmon fillets with salt and place them into the pan with the butter and oil, skin side down and cook for 3½-5 minutes. Do not mess with the salmon, just let it sit there.
Flip the fish, pour in the marmalade glaze, making sure you do not pour it over the skin, reduce the heat to medium and cook for a final 2-3 minutes, then serve.