Know how to use "fewer" and "less"? Find out.
mid-15c., "food made with paste," not originally limited to sweets, from Middle English paste (see paste (n.)) + -ry. Probably influenced by Old French pastaierie "pastry" (Modern French pâtisserie), from pastoier "pastry cook," from paste (see paste (n.)); also borrowed from Medieval Latin pasteria "pastry," from Latin pasta. Specific sense of "small confection made of pastry" is from 1906. Pastry-cook attested from 1712.
stiff dough made from flour, salt, a relatively high proportion of fat, and a small proportion of liquid. It may also contain sugar or flavourings. Most pastry is leavened only by the action of steam, but Danish pastry is raised with yeast. Pastry is rolled or patted out into thin sheets to line pie or tart pans and to enclose fillings. Poultry, tenderloin of beef and other cuts of meat, and pates are sometimes prepared en croute, wrapped in a pastry crust. Thicker sheets may be formed into cases, pinwheels, crescents, or braids, with or without fillings and glazes or icings