Add the butter, chicken stock, salt, bay leaf, thyme, and tarragon and bring to a simmer.
Scoop about 1/2 cup of crab salad mixture on plate, followed by a teaspoon of tarragon oil at the base.
It has French ingredients like leeks and tarragon, and I use puff pastry to make the crust easy!
1530s, from Medieval Latin tragonia, from Byzantine Greek tarchon, from Arabic tarkhon, from a non-Arabic source, perhaps Greek drakon (from drakontion "dragonwort"). Eastern European plant of the wormwood genus (Artemisia Dracunculus), whose aromatic leaves were used for flavoring (especially vinegar). Cf. Spanish taragona, Italian targone, French estragon.