Wash the sage, shake dry and pluck off the leaves. Cut the ham slices into thirds. Peel and wash the potatoes and then cut them in close together, but do not cut through. Distribute 3 ham slices and 3-4 sage leaves in each of the compartments.
Season with salt and pepper.
Place the potatoes on a greased pan lined with baking paper and bake in a preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer) for approx. 1 hour.
Meanwhile, grate the raclette and Comté finely and mix with cream cheese and breadcrumbs. Spread on the potatoes and bake for another 20 minutes. Serve with tomato salad.