They add a unique vegetal note to recipes, often used as a topping. But if you're out of capers or simply prefer something ...

Perhaps the closest substitute would be pickled nasturtium ... Unlike pickles, artichokes will also work well in just about ...

is a great substitute. To save yourself some work, have your fishmonger scale and gut the fish for you at the counter. Corry likes to make this compound butter using wild Tunisian mountain capers ...