Lemon Birthday Cake Crumble Bars

What better way to celebrate a birthday than with Lemon Cake Birthday Crumble Bars? This sweet and tangy dessert gets its birthday designation from the festive rainbow sprinkles baked into the top layer of the bar. Made from three layers, these crumble bars may sound intimidating, but they are a very easy-to-make dessert. A layer of crust, a layer of lemon filling, and a top layer of birthday cake crumble add up to make the most delicious lemon birthday treat you'll ever have.