Boil sliced red potatoes until tender, about 5 to 10 minutes.
Drain the potatoes and let cool. To cool faster, rinse with cold water for several minutes.
Add cooled potatoes and all toppings to a large mixing bowl.
Add all dressing ingredients to a small bowl and whisk until combined. Pour over the potatoes and toppings. Toss until well-mixed. Refrigerate until ready to serve.