This delightful lemon sponge cake is moist and tangy, filled with rich lemon buttercream and covered in a sweet lemon sugar icing. Topped off with a drizzle of fresh lemon juice for an extra touch of brightness, this classic treat delivers a vibrant and crowd-pleasing flavor, making it an ideal choice for cafés, tearooms, and dessert counters. With its soft crumb and refreshing citrus profile, it's a reliable option for any time of day, perfect for pairing with hot beverages or serving as a light dessert.