Sweet Potato Crystalized Roll

Cut the sweet potatoes into 1 cm thick slices and soak them in a mixture of water and lemon juice to prevent browning

Simmer them over low heat until they become slightly tender

Drain excess liquid

In another pan, combine the water, lemon zest, and sugar, and bring to a boil until the sugar dissolves

Add the sweet potato slices and simmer in low heat until the syrup begins to thicken

Remove each slice with a fork and arrange them on a lightly oiled surface so they don't stick together

After the exposed side becomes dry, flip and let the other side air-dry as well

Serve immediately or store in an airtight container