1. Peel the potatoes and clean them. Cut the potatoes every 4 mm, the bottom can not be cut.
2. Wrap it in tin foil, put it in the middle of the oven at 220 degrees, and bake for 45 minutes.
3. Take out the potatoes, remove the tin foil, cut the sliced ham into semicircles, brush both sides with a layer of black pepper salad dressing, insert one by one into the gaps of the potatoes, and then use a brush to apply another layer on the potatoes.
4. Finally, sprinkle some ground cumin and pepper on top.
5. Put it in the oven and bake the middle layer up and down at 220 degrees for 20 minutes.
