Caviar -- just the name invokes associations of decadent luxury. You might think of a small spoonful served in first class airlines, or a caviar-topped bite presented at a lavish dinner party.

In a food processor, combine crème fraîche, horseradish, mayonnaise and lemon juice, and pulse until smooth. Add egg yolks, and pulse until smooth. Transfer to a bowl, and fold in shallots and ...