Caviar Provençale

This refreshing, piquant purée is served on toast as an appetizer. It also makes a wonderful dip: Place it in half a scooped-out raw eggplant or in a brightly colored bowl and surround it with 2-inch sticks of cucumbers, fennel, celery, and carrots, along with whole white radishes and cherry tomatoes, or with potato chips. It is delicious served with a vermouth or chilled white wine.