1. Add Kipfler potatoes to a saucepan and cover with water. Bring to the boil and cook for 15 minutes, or until potatoes are tender. Drain and set aside to cool briefly for 10 minutes.
Once cool enough to handle (but still warm!) slice potatoes into two or three chunks and transfer to a large bowl. Toss with one and a half tablespoons (30mL) of the olive oil and red wine vinegar.
Meanwhile, add remaining half a tablespoon of olive oil (10mL) to a frypan over medium heat. Pan fry sliced chorizo until crispy on the outside. Transfer to a paper towel-lined plate to remove excess oil and cool off slightly. Once cooled, add to bowl with potatoes.
To make the dressing, whisk together mayonnaise and yoghurt. Add to cooled potatoes and chorizo and toss well.
Add chopped herbs and spring onions and mix to distribute. Season generously with salt and pepper. Serve immediately, or store in an airtight container overnight for consumption the following day.