Ice cream is more than a sweet treat. Technically, it is a combination of ingredients that provide thickening, soft gelling, and thin film formation to produce a frozen product with both fat dispersed in water and air dispersed in water emulsions, and a long shelf life, says Donna Klockeman, senior principal food scientist at TIC Gums, White Marsh, Md. (ticgums.com). But you can also think of ice cream as a blank canvas from which manufacturers can formulate products with creative flavors and in…