Valpelline valley, Valle d'Aosta — the soup is named for the valley and is considered one of the defining preparations of the Valdostano kitchen. The layered bread-cabbage-Fontina construction is the practical expression of the Alpine winter pantry: preserved bread, stored cabbage, aged cheese, and a pot of broth.
Soupe à la Vapellenentse (or Soupe de Valpelline) is the classic winter soup of the Valpelline valley in Valle d'Aosta — a dish that transforms the peasant pantry staples (stale rye bread, Savoy cabbage, Fontina, beef broth) into a layered, baked preparation that is closer to a gratin than a soup. The soup is built in a heavy pot: layers of stale bread, blanched Savoy cabbage, and Fontina, moistened with good meat broth, then baked in the oven until the top is golden and the cheese is melted through. It is related to the broader Alpine tradition of soupe de chalet (chalet soup) and to the Valtellina sciàtt tradition, but the Fontina and the valley specificity make it distinctly Valdostano.
Soupe de Valpelline arrives at the table steaming and golden, the Fontina bubbled and browned on top, the bread beneath transformed by the broth into something between a dumpling and a sponge. The Savoy cabbage has given its sweetness to the broth; the Fontina strings between spoon and bowl. It is the most substantial soup in the Valdostano repertoire.
Slice day-old rye or whole-wheat bread thin; toast lightly if very fresh. Blanch Savoy cabbage leaves 3 minutes in boiling water; drain and squeeze dry. In a deep ovenproof pot, layer: toasted bread, cabbage, thin-sliced Fontina d'Aosta, repeat. Moisten each layer with hot beef broth. Cover and bake at 180°C for 30 minutes; uncover and continue 15 minutes until the top is golden. The broth should be mostly absorbed but the bottom should remain moist. Serve in the pot, scooping through all layers.
The broth is the foundation of this soup — a genuine long-simmered beef broth (brodo di manzo) made from marrow bones and beef shin is what separates an extraordinary soupe from a mediocre one. The Savoy cabbage should be fully blanched and well-drained — any residual water in the cabbage dilutes the broth layers. Leftovers reheated the next day with a new ladle of broth are often better than the first serving.
Too much broth — the soup becomes soggy rather than layered; the broth should just moisten the layers, not flood them. Fresh bread that hasn't dried — fresh bread disintegrates; the bread should be at least 2 days old. Using standard Fontina rather than Fontina d'Aosta DOP — the valley character of true Fontina is irreplaceable here.
Slow Food Editore, Valle d'Aosta in Cucina; Anna Gosetti della Salda, Le Ricette Regionali Italiane