Cook the trout fillets under a preheated hot grill for 4 minutes on each side until cooked through, then discard the skin, break the flesh into flakes, and place in a bowl.
Add the mashed potatoes, spring onions, capers, dill, lemon rind, and 2 tablespoons of lemon juice.
Season with salt and pepper.
Shape into 8 cakes and chill for 20 minutes.
Heat the oil in a frying pan and cook the fishcakes, in batches, for 4–5 minutes on each side or until golden and cooked through.
Serve with steamed tenderstem broccoli and lime wedges.
Notes / Tips / Wine Advice:
Serving Tip:Serve immediately with steamed broccoli and lime wedges for a complete meal.Wine Advice:Pair with a crisp Sauvignon Blanc or a light-bodied Pinot Grigio to complement the delicate flavors of the trout and dill.