Pop your salmon into a freezer bag and add the soy sauce, honey, garlic, ginger and chilli (if using).
Rub the ingredients into the salmon, seal the bag and leave to marinade for at least 15 minutes - but the longer the better! A few hours is fine.
When you're ready to bake your salmon, preheat the oven to 175C and line a baking tray with foil.
Carefully remove the salmon from the freezer bag, reserving the marinade - this will be the glaze.
Bake the salmon for 10-15 minutes depending on the size of your fillet.
Whilst it's baking, pour the marinade into a sauce pan and reduce over a medium heat until nicely thickened.
Pour over the salmon to serve.
Calories: 345 / Protein: 34g / Carbohydrate: 13g / Fat: 18g