01 -
Add the petite white or red potatoes to a medium pot and cover them with water by 1 inch. Bring to a boil over high heat, then add 1-2 teaspoons of kosher salt. Reduce the heat to maintain a rolling simmer and cook until the potatoes are tender and can be easily pierced with a fork or skewer, about 15 minutes.
02 -
While the potatoes are cooking, prepare the dressing. In a jar with a lid, combine extra-virgin olive oil, red wine vinegar, minced or crushed garlic, dry mustard, dried thyme, dried oregano, kosher salt, and ground black pepper. Secure the lid and shake well until the dressing is emulsified. Set aside until ready to use.
03 -
Once the potatoes are done, drain them and let them cool until comfortable to handle. Cut the warm potatoes in half or into bite-sized pieces, depending on their size. While they are still warm, drizzle the reserved caper brine over the potatoes and toss gently to coat. Set aside to cool slightly.
04 -
Once the potatoes have cooled slightly, add the pitted kalamata olives, thinly sliced red onion, chopped sun-dried tomatoes, capers, and roughly chopped fresh dill to the potatoes. Pour the prepared dressing over the ingredients and gently toss everything together until well combined. Taste and adjust the seasoning with more salt and pepper if needed. Top with crumbled feta cheese just before serving. Let the salad rest for at least an hour before serving so the potatoes really soak up all the tangy dressing.