Rinse the cucumbers and squeeze out any excess moisture. In a bowl, whisk the sour cream with the shallot and vinegar. Season with salt and white pepper, fold in the cucumber and dill and serve.
Then dice slices into ¼-inch cubes. In a salad bowl, gently toss nectarines, cucumbers, onions, chiles and mint. In a small bowl or jar, combine oil, orange and lemon juices, mustard, maple syrup ...
Remove from the grill. Place the trout on a cutting board and peel the skin off while it's still warm. Place the fish on a plate, and serve with a dollop of horseradish cream and cucumber salad.