Stevie Nicks taught us that "Thunder only happens when it's raining." Well, it must be pouring because the Thunderclap Martini is very loud and also, very boozy. Make sure you're not going to operate any heavy machinery and let's get mixing!
1 1/2 ounces of Bourbon
3/4 ounce of Gin
3/4 ounce of Brandy
Pour the ingredients into a shaker with ice.
Stir. Do not shake. For this is nothing but alcohol and a shake is a mistake.
Strain into a martini glass.
Garnish with maraschino cherries. Or nothing at all. Your choice.