If the word Chardonnay evokes images of fat, buttery, oaky white wines, Chablis will completely throw you for a loop. Always made entirely from the Chardonnay grape, Chablis is one of the most austere wines in the world, due to its cool Burgundian climate and famed limestone soils. It can also be one of the world’s most ageable and complex wines, making it one of the wine world’s heavy hitters. From Petit Chablis to Grand Cru cuvées, this is a wine that every oenophile should know, illustrated in our guide below.