1. Peel and wash the yam, cut it into thin slices as shown in the figure with a peeler, and soak it in starch water prepared in advance.
2. Boil the boiling water in the pot and blanch the yam slices in the pot.
3. Take out the yam slices and soak them in cold water for a while (if yam is too sticky, you can wash it twice).
4. Take out the yam and drain it, use kitchen blotting paper to drain it, and then put it in a baking tray for 150 10 minute (everyone's oven is different, please observe whether the yam slices are dry).
5. Take out and brush a layer of vegetable oil, then turn it over layer by layer, and then put it in the oven 10 minutes.
5. After the crispy yam slices are baked, sprinkle some seaweed to taste.