Clean, wash and spin dry the lettuce. Cut the onion into fine cubes. Cut the apple with the peel into thin wedges and then into pieces. Roast the pine nuts dry in a pan.
Prepare a marinade with vinegar, liquid honey, salt, pepper and oil. Finally add the onions.
Fry the bacon on both sides until crispy and remove from the pan. Sauté the apple pieces in the remaining fat and caramelize with sugar.
Divide the salad on 2 plates and drizzle with the marinade. Spread the caramelized apples and the bacon on the salad while they are still warm. Sprinkle with the pine nuts.
Warm the smoked trout fillets slightly, possibly in the microwave, and enjoy with a salad.
As a side dish, baguette or toast bread go very well.