2 tsp. Powdered Sugar - (more)
1 1/2 oz. Dry Sherry - (more)
1 Lemon (Cut in quarters) - (more)
1 oz. Sloe Gin - (more)
Club Soda - (more)
Mix lemon and sugar, then shake with ice, sherry and gin. Strain into a collins glass and top up with the soda.