Biting into a lemon cupcake isn't anything like sinking your teeth into an actual lemon. Although there will be a definite bit of tartness with the cupcake -- the amount of which is determined by the recipe -- the overriding sensation should be sweet. In fact, that's what makes this variety so popular. People who like a little sour with their sweet have found an answer to their dessert dilemma after years of passing up chocolate and red velvet cupcakes. Lemon cupcakes have really gained popularity in recent years, and you'd be hard-pressed to walk into a specialty cupcake store and not find one.
Lemon cupcakes typically consist of a yellow, lemon-flavored cake with sweet but slightly tangy yellow frosting. If the combination of lemon cake and lemon frosting is too tart for your taste, ask for an unfrosted cupcake with just a light dusting of powdered sugar for a subtle dose of extra sweetness.