This marbled 4th of July 'box' cake is a festive and delicious dessert that's perfect for celebrating Independence Day. A moist and fluffy vanilla cake is swirled with vibrant red and blue food coloring to create a stunning marbled effect. The cake is baked in a square pan and frosted with a creamy vanilla buttercream, making it look like a wrapped present. This eye-catching cake is sure to be the star of any 4th of July gathering.