I bake these every year at Christmas
Standard ingredient declarations omit the physical transformation that occurs when solid fat crystals trap microscopic air pockets during mixing. Creaming granulated sugar into shortening creates a cellular matrix that expands upon exposure to heat, producing a stable dough capable of retaining fine decorative contours. Without this aeration phase, cookies spread flat during baking.
Shortening contains one hundred percent fat without water content, unlike butter which introduces roughly sixteen percent moisture. Eliminating liquid water from the primary fat source prevents gluten strands from forming excessively when mixing three cups of all-purpose flour. Consequently, dough chilled thoroughly retains structural rigidity during rolling. Bake these cutouts at 350 degrees Fahrenheit for eight to ten minutes, watching for pale golden edges that signal starch gelatinization without browning the surface.