 A Lemon Drop is a cocktail with a lemony , sweet and sour flavor , whereby the sweet and sour ingredients serve to contrast and balance one another . It is a vodka @-@ based cocktail that is prepared with the addition of lemon juice , triple sec and simple syrup . Plain or citrus @-@ flavored vodka may be used in its preparation , such as citron vodka . Lemon @-@ flavored vodka is also sometimes used . Lemon juice that has been freshly squeezed may be used , which can produce a superior drink compared to using commercially @-@ prepared lemon juice . Some versions are prepared using the juice from Meyer lemons . 
