One type of Irish potato candy is Needham candy, which uses mashed potatoes along with butter, sugar, coconut and chocolate. Another recipe uses neither potatoes or chocolate instead calls for butter, cream cheese, coconut, vanilla and powdered sugar.
Make traditional potato candy by combining 1/4 cup plus 2 tablespoons of mashed potatoes, 2 tablespoons of butter, 1 pound of confectioners' sugar, 4 ounces of unsweetened coconut and 1 teaspoon of vanilla extract. Season the mixture with salt to taste, and press the candy into the bottom of a pan or into a mold. Freeze it until it's firm. Cut the candy into bars, and dip the pieces in 8 ounces of melted semi-sweet chocolate chips.
Another recipe calls for 4 ounces of softened cream cheese and 1/4 cup of softened butter instead of mashed potatoes. Cream the two ingredients together, and then stir in 1 pound of powdered sugar and 1 teaspoon of vanilla extract. Fold 7 ounces of sweetened coconut flakes into the mixture. Form the candy into oval shapes, and roll them in 2 tablespoon of ground cinnamon. Line up the candies on a baking sheet before chilling them for several hours. Make sure that they are firm before removing them from the refrigerator and serving them.