Ingredients: 2 sweet potatoes.

Accessories: butter 15g, sugar.

1. Wash and peel the sweet potato.

2, cut the sweet potato into thin slices, cut evenly as far as possible, so that you can mature together (the knife is not easy to use, you can use an eraser to rub it into thin slices).

3. After throwing it twice with clear water, soak it in water for 10 minute to remove starch.

4. Scrub or dry the water with kitchen paper.

Spread it on the high shelf of the oven and brush it with a layer of melted butter.

Step 6 sprinkle a little sugar on the surface

7, oven 180 degrees, 5 minutes later turn to 165 degrees, about 20 minutes.

8. Turn over halfway, brush a little butter and sugar on the surface, and bake until the sweet potato slices turn yellow and crisp.