My husband and I made these Thin Mints Saturday night and they are soooo good! They don't take long and there are only 4 ingredients. The recipe says it makes about 2 dozen, but I guess it depends on what size bag of chocolate chips you get because we went through a sleeve and a quarter of Ritz crackers. It also says 1-2 tsp of peppermint extract - we used 1.5 tsp.
Support the Girl Scouts, but if you're short on cash, this is a great substitute.