The phrase "chocolate buckwheat" refers to a type of food that combines the flavors of chocolate and buckwheat. It is likely a product that contains or is made with both chocolate and buckwheat ingredients. Full definition
Spread enough chocolate buckwheat granola over the bottom of the form to create a crust for the cake. (golubkakitchen.com)
Trial # 14 was this buckwheat version, to make a healthy chocolate buckwheat cake! (dessertswithbenefits.com)
Friends... I'm not going to lie to you, this pumpkin cheesecake with chocolate buckwheat crust is, well... it's kind of a big deal. (fuellingthefork.com)