Rösti potatoes with raclette cheese and melted leeks was one of my favorite dishes when I lived in France. The most famous raclette dish is one with melted raclette over boiled potatoes. Here, I bring you my take on that classic, with some refined enhancements.
Chop the herbs on a dry, clean cutting board, mix together in a small bowl and set aside. Heat a large, straight-sided skillet on high. Add the butter and swirl. Turn heat to medium and add the leeks, season with salt and pepper, and cook the leeks are until very soft but not browned, about 10 minutes. Add the herbs and season with salt and pepper. Set aside.
Grate 2 of the potatoes and season with salt and pepper. Immediately place the potatoes in a clean towel and squeeze, twisting to extract as much liquid as possible. Repeat this step after the first layer has added to the pan.
Heat a medium, nonstick skillet on high. Add the oil and when hot, add the potatoes. Press with a spatula to form a cake covering the bottom of the pan. Add the Raclette in one layer, allow it to melt, then add the leek mixture. Cover with the remaining grated potatoes and press with a spatula to form an enclosed potato cake stuffed with the leeks and cheese. When the bottom is browned and crispy, about 12 minutes. Flip, add more oil as necessary, and cook other side until golden and crisp, 10 minutes.
Remove to a cutting board and cut into wedges to serve.