Antoine's is a great old school restaurant in New Orleans.  Many years ago Lawson Rollins, my best friend in college who is now an award winning world class musician (click here for his website), introduced me to Antoine's when he lived in New Orleans.  I go there whenever I'm in town, and I've had many wonderful experiences in the restaurant and the Hermes bar.  I don't know the proportions Antoine's uses for this cocktail, so here's my version.

2 ounces Calvados or apple brandy
Juice from 1/8 lemon
.75 ounces super simple syrup
.25 ounces glorious grenadine

Combine in a shaker with ice, shake with the joy of savoring some amazing food and drink, and strain into a chilled glass.

Calvados is an apple brandy from the Calvados region in France.  It's a key component in other tasty cocktails such as the Corpse Reviver #1.  If you can't find Calvados in a liquor store you can find it online.

The Antoine's Smile is a great brunch cocktail.  It is a little sweeter than many drinks in the Wulf Cocktail Den, even compared to other brunch drinks such as the Good Morning Manhattan.  Of course, the Calvados gives the Antoine's Smile some punch, and the lemon juice keeps it from being too sweet. 

Put a smile on your face and have an Antoine's Smile.