A canapé is actually a type of hors d'œuvre that’s more than just an hors d'œuvre. It’s a multi-level appetizer consisting of a few special layers:  1. A base like bread, toast or a cracker 2. A spread like we’re making - tapenade, pesto, cream cheese, etc.  3. A topping like the tiny vegetables we’re going to add.  4. A garnish like an herb or even an edible flower.  Sometimes, it will even have an extra sauce of some kind on top like sour cream, a mustard, hot sauce –  just something to add one more exciting pop of flavor on top of all the other exciting textures and flavors. Suffice it to say, it makes for a very entertaining bite.