My dogs prefer fish flavored granulated bouillon, but you can use any flavor you wish. Combine it and the rest of the dry ingredients. Cut in drippings until mixture resembles cornmeal. Mix in egg. Add just enough water to make mixture form a ball. Pat (or roll) dough to 1/2" thick and cut into desired shapes. Small dogs (like mine) like bite sized pieces like stars about the size of a quarter. The general rule is, the bigger the dog, the bigger the "cookie". The "10 servings" are for 6 inch bones. Place on a lightly greased cookie sheet. Bake at 25 to 30 minutes, until hard and dry. Cool before serving.