Irish Cinnamon Potato Candy

1/4 cup mashed potatoes
1/2 teaspoon salt
3 1/2 cups sifted confectioners' sugar
1 teaspoon vanilla extract
1 cup shredded coconut
1 tablespoon butter
Cinnamon

Put potatoes in large bowl (can use instant potatoes to make 1/4 cup). Add salt, sugar, vanilla extract, coconut and butter. Mix well. Knead several minutes, adding more sugar, if necessary, to make a stiff dough. Tear off a teaspoon of dough and form into a small log shape. Roll in cinnamon. Lay on wax paper for 1 hour to dry. Store in an airtight container.