. . "ng Adds air to flour, cocoa, and confectioner's sugar; removes lumps and filters out any impurities. ??? ??? ??? Lean Dough Made with flour, yeast, water, and salt; they have very little or no sugar or fat. ??? ??? ??? Rich Dough Made with the addition of shortening or tenderizing ingredients such as sugars, syrups, butter, eggs, milk, and cream. ??? ??? ??? Straight-dough Method Also called the s" . . .