Italian Potato Salad

Bahan-bahan (6 porsi)

• 2.5 pounds Yukon gold or red potatoes
• 2 large handfuls fresh baby arugula
• 2 cups baby mozzarella balls
• 2 cups cherry or grape tomatoes, halved
• 1 (12-ounce) jar artichoke hearts, drained and halved
• 1 cup diced Italian salami (optional)
• 1/2 cup sliced black olives
• half of a small red onion, thinly sliced
• 1/3 cup finely-chopped fresh basil leaves
• grated Parmesan cheese, for serving (optional)
• 1/3 cup olive oil
• 3 tablespoons red wine vinegar
• 2 teaspoons Dijon mustard
• 1 teaspoon dried thyme
• 1 teaspoon fine sea salt
• 1/2 teaspoon freshly-cracked black pepper