Carabaccia

Carabaccia is the original onion soup originating from Tuscany. It dates back to the Renaissance, was Leonardo DaVinci's favorite, and consists of thinly sliced red onions, ground almonds for thickening, cinnamon, salt, pepper, olive oil, toasted bread, vegetable stock, grated cheese such as Pecorino or Parmigiano-Reggiano, wine vinegar, and either honey or sugar to bring out its sweet and sour flavors. This ancient soup is a classic cucina povera dish that was made out of necessity. When served, a slice of toasted bread is placed in the bottom of each bowl, followed by the carabaccia soup, grated cheese, a pinch of cinnamon and sugar, and a drizzle of olive oil. Modern versions of the soup usually omit the cinnamon, almonds, and vinegar from the recipe.