Fun and fizzy with a hit of elegance, it's no surprise that the French 75—named for a World War I-era gun—is a standard of the cocktail canon.Ingredients:Produce:1 Lemon, twistCondiments:3/4 oz Lemon juice, freshly squeezed3/4 oz Simple syrupBeer, Wine &amp; Liquor:2 oz Champagne1 1/2 oz Gin