1 piece lime peel, about the size of a quarter
1/2-inch piece peeled ginger root, cut crosswise into quarter-size slices
1 1/2 ounces cognac
4 or 5 ice cubes
2 ounces freshly squeezed lemonade (see headnote)
1 long piece cucumber peel, for garnish
Place the lime peel and ginger slices in an old-fashioned glass. Add 3/4 ounce of the cognac and gently muddle. Fill the glass halfway full with ice cubes; stir well for 5 seconds. Add the remaining 3/4 ounce of cognac and the lemonade. Rub the rim of the glass with the underside of the cucumber peel, then drop the peel into the drink. Stir for 5 seconds, then serve.