Carrots and Fennel in Agrodolce

Italians preserve a variety of vegetables in a sweet-and-sour brine known as agrodolce. This somewhat unusual combination of carrots and fennel is my own creation. The two go well together in salads so, I thought, why not as a pickle? Use a mix of colorful carrots—gold, orange, red—if you can find them. The darker ones turn the brine sunset pink. The pi…