An easy sheet cake recipe, and the perfect summer dessert idea! I love sheet cake recipes because they're such a delicious and simple dessert recipe for parties, or just when you need a quick and easy cake recipe! This delicious and simple lemon sheet cake recipe from scratch is dotted with fresh blueberries, and topped with a lemon glaze instead of frosting for a lighter cake. Seriously the best lemon cake - full of flavor and super moist! If you need summer dessert recipes, look no…