Say "Whiskey Sour" and most people picture a drink with an umbrella and/or a dyed-red cherry.
2 oz Ardbeg Single-Malt Islay Scotch
1 oz fresh lemon juice
1 squirt Blue Agave nectar
Stir to combine (or shake)
Garnish with 1/4 frozen lemon instead of ice.
THAT! My friends. Is a true Whiskey Sour.