Spritz cookies

Spritzgebäck , also called a spritz cookie in the United States, is a type biscuit or cookie of German and Alsatian-Mosellan origin made of a rich shortcrust pastry. When made correctly, the cookies are crisp, fragile, somewhat dry, and buttery. The German root verb spritzen ( German: [ˌʃpʁɪt͡sn̩] ⓘ) is cognate with the English to spurt. As the name implies, these cookies are made by squeezing, or "spritzing", the dough through a cookie press fitted with patterned holes (or extruded through a cake decorator or pastry bag to which a variety of nozzles may be fitted).

Source: Wikipedia