Simple Potato Salad Recipe

4 small sweet potatoes (1kg in total), 5 tbsp olive oil, 40ml balsamic vinegar, 20g caster

2 small golden or white potatoes, washed and quartered, 2 cobs sweet corn, 1/4 cup red onion,

5 medium potatoes, 500g green asparagus, 200g goats cheese, handful of walnuts, fresh rosemary,