Recipe courtesy of Food Network Kitchens   Total Time: 1 hr 25 min Prep: 20 min Cook: 1 hr 5 min Yield:4 servings Level:Easy   Ingredients 1 1/2 pounds small baby red or tricolor creamer potatoes, quartered 1 tablespoon extra-virgin olive oil 1 1/2 teaspoons finely chopped fresh rosemary Kosher salt Four 6- to 8-ounce halved