MYSTERY CAKE

This is a hot milk cake, where boiling milk melts the butter and creates a temporary emulsion that incorporates smoothly into the batter. The heat also denatures some egg proteins immediately, creating a fine, tender crumb. Gradually adding sugar to well-beaten eggs dissolves the crystals completely while incorporating air, and the double-sifted flour ensures even distribution of leavening, preventing tunneling and creating a delicate, uniform texture.