Certain words, when included in the title of a recipe, will spark my interest. Who doesn't want to know what is "hidden" inside or what technique or ingredient makes the recipe a "mystery"?
One of the first recipes that comes to mind is the popular "Tunnel of Fudge Cake." When Ella Helfrich of Houston, Texas, was experimenting with a new idea for the 1966 Pillsbury Bake-Off, her Bundt cake "mysteriously" developed a center of fudge. This has become known as the "most famous Bundt cake of all time." I wonder if perhaps this old recipe had something to do with the birth of the little chocolate lava cakes that are so popular now.