Warm Kipfler and Cucumber Salad with Dill

Ingredients

• 1 medium_piece red onion, thinly sliced
• 4 lebanese cucumbers, seeded, thinly sliced
• 1/4 cup white wine vinegar
• 1 tablespoon white sugar
• 1 teaspoon salt
• 1 kilogram kipfler potatoes, unpeeled, sliced diagonally
• 1/4 cup olive oil
• 1 cup loosely packed fresh dill sprigs
• 1/4 cup salted baby capers, rinsed, drained