Potage Crécy — Classical Carrot Soup

Potage Crécy is the classical French carrot soup — a velvety, naturally sweet purée that demonstrates the power of slow sweating to concentrate and transform vegetable flavour. Named for the town of Crécy-en-Ponthieu in Picardy (famous for its carrots as much as its medieval battle), this potage follows the standard template for puréed vegetable soups but with a crucial distinction: the carrots must be sweated extensively in butter before any liquid is added, a process that concentrates their natural sugars and develops a deeper, more complex sweetness than raw carrots simmered in stock could ever achieve. Slice 600g of carrots into thin rounds — uniformity ensures even cooking. Sweat them in 60g of butter with a sliced onion and a pinch of salt over medium-low heat for 15-20 minutes, stirring occasionally. The carrots should soften and begin to release their sugars, turning a deeper orange. Add 100g of diced potato (for body and natural thickening), 1 litre of chicken stock, a bouquet garni, and a pinch of sugar if the carrots lack sweetness. Simmer for 25-30 minutes until everything is completely tender. Remove the bouquet garni and purée through a moulin-légumes or in a blender until perfectly smooth — carrots, unlike potatoes, benefit from thorough blending as their fibres need full breakdown for silkiness. Pass through a fine sieve for absolute smoothness. Return to gentle heat, adjust consistency with stock, and finish with 80ml of double cream and 30g of cold butter. Season with salt, white pepper, and a tiny grating of nutmeg. The garnish in Escoffier's repertoire is croutons fried in butter and a sprinkle of chervil, though rice (making it Crécy au riz) is also classical. The finished soup should be the colour of autumn — warm, deep orange, neither pale (undercooked carrots) nor brown (over-caramelised).