This drink goes back much farther than the hilarious British superspy spoof and everyone's favorite green superhero. The cocktail dates back to the 19th century, and an article from Imbibe magazine will give you some good historical background (click here to read it). Here's how to make it:
2.25 ounces bourbon (Willett is great, and I used 1792 here)
.75 ounces super simple syrup
1/4 lemon cut into a couple of pieces
4-5 mint leaves
Muddle the lemon and mint in a shaker, add the super simple syrup, bourbon, and ice, shake like you're the Hulk smashing someone or Austin Powers shagging a babe, then strain into a chilled glass.
This drink essentially is a cross between a Mint Julep and a Whiskey Sour. It has something for everyone. It's easy to adjust the ratios of the ingredients to suit your taste for tartness, sweetness, etc. If you look you can find a lot of variations with different liquors and other ingredients, but the concept is the same. When it comes to the muddling, you don't need to be like you're Dr. Banner in desperate need of an anger management program.
No disrespect to the Hulk, but Captain America is my favorite Avenger. He exudes honor, acts like a gentleman, stands up to bullies of any stripe, and kicks Nazi ass. Now go get smashed!