Sweet Potato Sandwich

Peel and thinly slice the sweet potato.

Steam the sweet potato, then mash and let it cool.

Cut off the crusts from the bread and spread butter on one side.

Mix the mashed sweet potato with sugar and mayonnaise.

Spread the sweet potato mousse on a slice of bread and cover with another slice.

Toast both sides of the sandwich in a pan over low heat until golden brown.

Cut the finished sweet potato sandwich in half.