The phrase represents a specific set of instructions and ingredient measurements intended to produce a baked dessert. It details the method to create a sweet confection that incorporates the flavor of a citrus fruit-flavored carbonated beverage. This generally involves combining flour, sugar, eggs, and butter or oil, along with the beverage and possibly citrus zest, to form a batter that is then baked until cooked through.
Such formulations offer a convenient way to infuse a cake with a distinctive, consistent flavor. The carbonation in the beverage can contribute to a lighter, airier texture in the final product. Historically, the use of commercially produced soft drinks in baking arose as a means of adding sweetness and flavor inexpensively, particularly in areas where fresh ingredients were scarce or costly. It also provided a consistent flavor profile that home bakers could rely upon.