Crispy roasted fingerling potatoes topped with buttery, slow cooked leeks for a comforting Thanksgiving side dish.
1. Preheat the oven to 425 F. Toss the halved fingerling potatoes with olive oil, salt and black pepper. Arrange cut side down on a sheet pan in a single layer. Roast until the potatoes are fork tender with deeply golden crispy sides.
2. While the potatoes are roasting, heat the butter and olive oil in a large skillet over medium low heat. Add the leeks and a pinch of salt. Cook gently, stirring occasionally, until very soft and sweet without browning. Add the garlic and continue to cook until fragrant.
3. Remove the leeks from the heat and stir in Dijon mustard and apple cider vinegar. Season with salt and pepper.
4. To serve, arrange crispy potatoes on a serving platter and spoon warm melted leeks over the top. Sprinkle with parsley to finish.