I don't know its formal name, but it's Danish puff pastry, shaped as a flat triangle, about half a square foot, topped with chocolate stripes and filled with almond paste. Sooo delicious! Unfortunately, it's only made in Scandinavian countries so I haven't eaten it for years.
A good second comfort food would be freshly made real Italian pizza (any with a meaty topping).
When i am really sad, i eat nothing! I cannot eat! Cooking, have breakfast, lunch, dinner that is for me fun and quality of life! So, i will answer: if i really sad, my comfort is: AIR! ☹️😂
My country, Colombia, we eat something called arepa and I totally love it! It is just the doe and the cheese that if you mix it together it ends in heaven in your hands and mouth. Also, you can add some toppings! My favorite is adding extra cheese 😃