Ingredients
1 pound baby Yukon gold or new potatoes, peeled and sliced 1/2 inch thick
Coarse salt and freshly ground pepper
1/4 cup safflower oil, plus more for brushing
2 tablespoons white-wine vinegar
1 tablespoon plus 1 teaspoon grainy mustard
3 tablespoons chopped fresh chives
2 pounds kielbasa, halved lengthwise
Preparation
Bring a large pot of water to a boil. Add potatoes and 1 tablespoon salt. Return to a boil; cook until tender, about 8 minutes. Drain; immediately toss with oil, vinegar, mustard, and 1 1/2 teaspoons salt; season with pepper. Refrigerate until cool, about 30 minutes. Stir in chives.
Meanwhile, heat grill to high. Brush grates with oil. Grill kielbasa until heated through and charred, about 3 minutes per side. Cut crosswise on the bias into 2-inch pieces. Serve with potato salad.
