This video shows how to make Birthday Cake Sprinkle Squares — a fun and colourful tray bake topped with icing and rainbow sprinkles. It’s soft, sweet, and perfect for parties, lunchboxes, school fairs ...

Kat Thompson is the audience editor of Eater’s Southern California/Southwest region. There is no cake that feels more like a birthday cake than a sprinkle cake. The kaleidoscope of rainbows when you ...