Most Calvados is a hair dry for the ladies, so I'd recommend a nice bottle of Applejack. Laird's is king and very affordable. Either can be used in the classic cocktails because apple brandy drinks usually combine at least 2 liquors.
2 ounces Calvados (or Applejack)
1/2 ounce Benedictine
1/2 ounce Triple Sec
1/2 ounce fresh squeezed lemon juice
Shake and enjoy.