Magic Cookie Bars are a classic American dessert layered with rich, gooey, and crunchy textures. Originating from the mid-20th century when Eagle Brand condensed milk recipes gained popularity, this sweet treat became a staple for potlucks, bake sales, and holiday gatherings. With a graham cracker crust and toppings like chocolate chips, coconut, and nuts, it's beloved for its simplicity and irresistible taste. Often called “Hello Dolly Bars,” these cookies need no mixing, just layer and bake!