PIERRE FERRAND COGNAC 1840 FORMULA GRAND CHAMPAGNE 90PF 700ML

Gently muddle mint and syrup in bottom of julep cup. Add cognac and fill level with crushed ice. Gently stir until cup frosts over then top up with mound of fresh crushed ice and garnish with the reserved mint

Et voilà. In the words of Jerry Thomas himself, you now have yourself a “julep that is fit for an emperor.”