The phrase signifies a baking procedure combining the flavors of key lime and lemon in a cake, utilizing a pre-made lemon cake mix as its base. This approach streamlines the baking process while aiming to achieve a tangy citrus dessert. For example, the phrase describes the instructions necessary to create a cake that tastes of both key lime and lemon, simplifying the process with the use of a readily available mix.
Such a recipe offers several advantages. It allows for relatively quick preparation compared to baking a cake from scratch, appealing to individuals with time constraints. The use of a lemon cake mix provides a consistent base flavor and texture, while the addition of key lime juice and zest infuses a distinct tartness. Historically, utilizing convenience products like cake mixes has been a trend in home baking, and this specific application provides a contemporary twist on traditional citrus desserts.