The Extreme expression sits at the very top of the Tesseron Cognac range, made with eaux-de-vie from the Grande Champagne region using Ugni Blanc, Folles Blanche and Colombard grapes. The spirits are allowed to age Tesseron's twelfth-century cellars before blending, and this particular expression has been made using some of the House's oldest stocks. Aromas of oak spice, toffee, juicy pears and rancio fill the nose and are echoed throughout the palate.