Meal and wine pairing
Photo by Les Hotels Paris Rive Gauche – AlainB(CC BY-SA 2.0)
https://upload.wikimedia.org/wikipedia/commons/8/8c/Raie_au_beurre_noir.jpg
Black butter sauce
Black butter: butter cooked until it turns a dark color, reaction with an acid (capers, lemon juice, white wine vinegar).