Wash potatoes, cook in salted water until soft (20-30min)

Drain and soak in cold water until cool

Peel potatoes and chop into 1/2-1cm thick pieces

Separately combine mayo ingredients and spices

Chop radish into thin circles, red onion into long strings, finely chop spring onion & pickles

Add veggies & mayo to potatoes, combine

Refrigerate and let cool