Snickerdoodle

A snickerdoodle is a type of sugar cookie made with butter or oil, sugar, and flour rolled in cinnamon sugar. Eggs may also sometimes be used as an ingredient. Snickerdoodles are characterized by a cracked surface and can be crisp or soft depending on preference. In modern recipes, the leavening agent is frequently baking powder in contrast with traditional techniques utilizing baking soda and cream of tartar.

Snickerdoodles are often referred to as "sugar cookies." However, traditional sugar cookies are often rolled in white sugar where as snickerdoodles are rolled in a mixture of white sugar and cinnamon.

Etymology
The Joy of Cooking claims that snickerdoodles are probably German in origin, and that the name is a corruption of the German word Schneckennudeln (lit. "snail noodles"), a kind of pastry. A different author suggests that the word "snicker" comes from the Dutch word snekrad, or the German word Schnecke, which both describe a snail shape. Yet another hypothesis suggests that the name has no particular meaning or purpose and is simply a whimsically named cookie that originated from a New England tradition of fanciful cookie names