2 measures/3 tbsp gin
1/4 measure/ 1 tsp sugar syrup
juice of a lime
2 dashes Angostura bitters

Beat all the ingredients together (as if you were making an omelette) in a large container with ice. When the mixture is foaming strain it into a tall glass.

1 ounce Gin
1 ounce Lemon Juice
1/2 ounce Cointreau
1 tsp Simple Syrup

Shake with ice. Strain into a cocktail glass.