They are used for snacking like potato chips, and also served at parties or get togethers as appetizers and dessert items, especially in North Dakota.
The "chipper" has existed for many years, although the facts about its creation and history are in dispute.
[1][2][3][4] For many years, these treats, called "chippers", have been made in the Grand Forks, North Dakota area by Widman's, other commercial confectioneries, and at homes.
[2][3][4][5][6] They were introduced into the market in Chicago in 1985 by a company called Executive Sweets.
Ridged chips are used because they tend to be more sturdy and can hold the heavy chocolate.