2. Baking: heat the oven to 200 degrees Celsius, clean the sweet potato, then pierce the tuber continuously with a fork, season with salt and pepper or cinnamon and butter, wrap the sweet potato with tin foil, and bake for 40 to 60 minutes.
3. Sweet potato slices: preheat the oven to 200 degrees Celsius, then wash the sweet potato, peel it and cut it into thin slices. Spread sweet potato slices evenly on a paper-lined baking tray, then sprinkle with olive oil and seasoning.
4. Sweet potato paste: Wash 1kg sweet potato, put about 3.5 liters of water in a large pot, add salt, peel the sweet potato, cut it into small pieces, and cook for about 15 minutes until the sweet potato becomes soft. Mash it on the plate until it becomes smooth.
5. Stir-fried sweet potato: Wash, peel and cut into thin slices. Pour olive oil into a pot and cook it over medium or high heat. When the oil is hot, fry the sweet potato in the pot until it is crisp.
6. Stir-fried sweet potato: Wash and cut the sweet potato into pieces, and serve with other dishes. Studies have shown that the digestive system can better absorb the nutrients in sweet potatoes when paired with high-fat dishes.