Olive Paste with Hard-Cooked Eggs on Toast

A zestier version of the chopped egg and olive sandwiches of our childhoods. The olive paste, a mixture of pungent olives with onion, capers, and herbs, can be bought in tubes or jars; it’s also easy to make, and it keeps more or less indefinitely. If you have the olive paste on hand, this can be put together in a moment. Nice to serve with a glass of wine while dinner is cooking.