The term 'NILLA PRODUCT' is a crossword solution that can be completed with the word 'WAFER', which has five letters. NILLA PRODUCT is a brand of vanilla-flavored wafers produced by Nabisco, a division of Mondelēz International. The wafers are made from enriched wheat flour, sugar, vegetable oil, and natural and artificial flavors. They are often used to make desserts such as ice cream sandwiches and banana splits.