Bob's Margarita on-the-rocks (Difford's recipe)
Salt rim (optional) & lime wedge
SHAKE all ingredients with ice and strain into ice-filled glass.
[['4.5 cl', 'Reposado tequila (100% agave)'], ['0.5 cl', 'Agave syrup'], ['1⁄2 pinch', 'Salt'], ['4 drop', 'Margarita Bitters'], ['2.5 cl', 'Lime juice (freshly squeezed)'], ['2 cl', 'Cointreau triple sec liqueur']]
[['4.5 cl', 'tequila'], ['0.5 cl', 'agave syrup'], ['1⁄2 pinch', 'salt'], ['4 drop', 'margarita bitters'], ['2.5 cl', 'lime juice'], ['2 cl', 'triple sec']]